Times 26080 - look at that slut in the fourth row!

Solving time : 14:55 - I think I made a meal of this one near the end, really struggling to get the last two entries (both of which were proper names not close to the front of my mind) while trying to piece together the wordplay. So there was a sigh of relief when the club timer showed me as all correct for the day, and with the third best time so far. Maybe it is on the tricky side?

I suspect the degree of difficulty will rely on knowing the names.

I got a message over the weekend, one of the regular Times setters celebrates 20 years of crossword publishing this week, so happy crossanniversary to John Halpern (aka Paul, Mudd, Punk)!

Away we go...

Across
1	LOOK AFTER: LOOTER(thief) containing an anagram of FAK(e)
6	SWISH: double definition, though in school the cane I remember made a sound like THWAP
9	SCRAP,ER
10	TEA ROOM: TEAR, O, OM
11	TU,M(unicipal)
12	INSPECTIONS: IN SECTIONS contining the second letter of uPsetting - was a little thrown by OFSTED in the clue, it's the Office of Standards in Education
14	LANDAU: hidden in queensLAND AUstralia
15	CONGREVE: CONGE(permission to depart, with an accent acute over the E), around REV. Tricky wordplay for the playwright William Congreve
17	SULLIVAN: SCULL(row) missing C beside 1,VAN - Gilbert wrote the words, Athur Sullivan provided the tunes
19	WI,SHED: Got this from the definition, but now I look it up, I do recall the film about the WI Calendar Girls
21	ADVANCEMENT: AD(notice), then CEMENT(sticker) after VAN
23	LAB: double def
25	MONARCH: ON in MARCH
27	BALLOON: B then LOON after A,L
28	SOPPY: OP in SPY
29	TEAKETTLE: TEAK then SETTLE missing S
Down
1	LISZT: IS,Z in the middle of baLTic
2	OARSMAN: (t)ARS in OMAN
3	APPLICATION: I think this is a double definition, but I may be missing something
4	THRUST: THUS surrounding R near a T junction
5	RATTED ON: (NOT,TRADE)*
6	SE,A
7	IRON ORE: OR in IR,ONE
8	HAMPSTEAD: MP in HASTE, then AD(active duty)
13	TAGLIATELLE TAG(dog) then ATE in LILLE
14	LAS PALMAS: A SPA in (SMALL)*
16	CASE, SHOT
18	LIVEN UP: a delicious reversal of PUN,EVIL
20	HOLD OUT: double definition
21	SERBIA: SERIA(l) containing B
24	BUN,C(ak)E
26	RAY: alternating letters in gReAsY