Pick me up puzzle 6 issue 15

[sandy10]

Can anyone help pls:
7a:foolishly(7) ???N???
9a:dominant(7) ???R???
15a:set of symbols showing the elements present in a compound(8,7) ???????L?O?????
21a:(Of a breeze)coming in from the ocean(7) ?N???R?
23a:swelling(up)(7) ???????
24a:layer(7) ?T???U?
1d:getting off scott-free(10) ?????I???D
3d:relating to weather conditions(8) ?????T??
4d:young & attractive(6)?U???E
5d:silver-white metal(8)?L???N??
14d:wicked(10) V???A???U?
16d:title block of newspaper or periodical(8) ??S?????
20d:improve by making small changes(6)R???N?

many thanks

[hawk3y3]

5d. aluminium
14d. villainous

[stocksman]

24 stratum

[hawk3y3]

15a. chemical formula

[Mamyalynne]

7 Inanely

[Mamyalynne]

5 Platinum

[griffgriff]

4d:young & attractive(6)?U???E Nubile15a:set of symbols showing the elements present in a compound(8,7) ???????L?O????? Chemical formula
21a:(Of a breeze)coming in from the ocean(7) ?N???R? On Shore
24a:layer(7) ?T???U? Stratum
5d:silver-white metal(8)?L???N?? Alumium
16d:title block of newspaper or periodical(8) ??S????? Mast Head

[griffgriff]

Sorry go with Platinum

[tommy-h]

20d,refine,retune?

[tommy-h]

3d,climatic

[tommy-h]

1d,admonished?

[tommy-h]

23a,puffing?

[Brenden]

1d. Unpunished

[Brenden]

9a. Supreme

[tommy-h]

9a,supreme?