Herald Cryptic

[creamegg]

Need help to get going, only got a few.

1a one extraterrestrial claiming another is superficial
????????

3d attention given to item, section milliners cutting, very important 5-10
????? ??????????

6d anxious briton marks card to identify property 6,3,6
b????? and ???t??

1d to put in box, out of the way 3,3
??? ???

12a unlikely, but in fact he can 3,6
??? ??????

17d social life and domestic say
????????

24a dry treated animal skin outside compound
??????i??

25a caretaker has to meet 101, not 5 (5a is Absorb)
?????????

[cashier]

6d BRicks and mortar

[Captain2]

24a H-ydr-ox-ide

[cashier]

25 custodian?

[ubasses]

1 cosm et ic

[Captain2]

12a Fat chance - anagram

[cashier]

1d cut off

[Captain2]

Any more letters yet for 3d and 17d?

[creamegg]

3d e???h ??????????

none for 17d

[ubasses]

earth shattering?

[Captain2]

3d Earth Shattering

[jazzyjen]

3. Earth shattering

[creamegg]

I think it must be earth shattering but no idea why.

If I get these couple it will give me some letters for 17d.

18a keen to follow detail, it's clear
????t??

22a host casually served half of them crepes, oddly
????e

28a bold idea, trip's not a flop
????g?

[Captain2]

Attention to = EAR
Item = THING, with
Section = S and HATTER = milliner, inside

[Captain2]

22 Emcee