Another fairly standard LR, fairly homophone-heavy and a little dig at DA in there.

Across

7

Produce initial evidence in case (6)
CREATE — E (first letter of evidence) in CRATE (case)

9

Directions,,, around Central London? (8)
COMMANDS — COMMAS (,,,) around ND (middle letters of London)

10

Reportedly glimpse more attractive sailor (8)
SEAFARER — homophone of SEE (glimpse) FAIRER (more attractive)

11

Starters from the restaurant's excellent menu - ordered raspberry shake (6)
TREMOR — first letters of The Restaurant's Excellent Menu Ordered Raspberry

12

Party involved pronouncing you husband and wife, perhaps? (3)
DUO — DO (party) containing homophone of YOU

13

Setter rolled over, woofed and started journey (8)
EMBARKED — reversal (rolled over) of ME (setter), BARKED (woofed)

16

Noble old spouse left during terrible date (7)
EXALTED — EX (old spouse), anagram (terrible) of DATE containing L (left)

17

To-do item: A eucalypt placed outside terminal (7)
AGENDUM — A GUM (eucalypt) outside END (terminal)

20

Happy to grab you pound of fruit (8)
MULBERRY — MERRY (happy) containing U (you) LB (pound)

22

Flop lacked energy in sea diving final (3)
SAG — SeA without e (energy), G (last letter of diving)

24

Want diamond and heart shuffled (6)
DEARTH — D (diamond), anagram (shuffled) of HEART

26

Family man Republican spins story with wives uncovered (8)
RELATIVE — R (republican) reversal (spins) of TALE (story), IVE (middle letters of wives)

27

Serves zero prison time unfortunately (8)
PORTIONS — anagram (unfortunately) of O (zero) PRISON T (time)

28

Forcefully enter strange idea about envy, vocally (6)
INVADE — anagram (strange) of IDEA around homophone of ENVY

Down

1

Narcissus, looking in the mirror, took lid off a drink, initially (8)
DAFFODIL — reversal (looking in the mirror) of LID OFF A D (first letter of drink)

2

A rotary eye updated annually (4,2,4)
YEAR TO YEAR — anagram (updated) of A ROTARY EYE

3

Traumatised and frightened about the latest horror (7)
SCARRED — SCARED (frightened) around R (last letter of horror)

4

Socceroo Cahill upset after ordinary header miss (4)
OMIT — O (first letter of ordinary), reversal (upset) of TIM (Socceroo Cahill)

5

Zoom calling (6)
CAREER — double def.

6

No dude! Too confusing for misfit (3,3,3)
ODD ONE OUT — anagram (confusing) of NO DUDE TOO

8

Overhears Aussie bouncer's regrets (4)
RUES — homophone of ROO'S (Aussie bouncer's)

14

Bigamous criminal accepts 150th false allegation (5,5)
BOGUS CLAIM — anagram (criminal) of BIGAMOUS containing CL (150th)

15

XQQQU? Don’t be rude! (6,3)
EXCUSE YOU — homophone of X QQQ U

18

Pessimistic vegetarian spits out Arkansas cooking (8)
NEGATIVE — anagram (cooking) of VEGETarIAN without ar (Arkansas)

19

Timber canopy hollowed out with iron (7)
CYPRESS — CY (outside letters of canopy), PRESS (iron)

21

Castigate naughty kid around fifth grade, and give ultimatum (6)
BERATE — BRAT (naughty kid) around E (fifth letter of grade), E (last letter of give)

23

Keen to knock off Astle's opener (4)
AVID — dAVID (Astle, without first letter)

25

Catch chef switching cold to hot (4)
HOOK — cOOK (chef) with c -> H (cold to hot)