Some chic lady wearing dress? (4)
I believe the answer is:
clad
'dress?' is the definition.
(thesaurus)
'some chic lady wearing' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'CLAD' is hidden within 'chic lady wearing'.
(Other definitions for clad that I've seen before include "Dressed" , "Invested" , "Clothed, covered" , "Attired" , "Cover with insulation" .)