Plenty of clothing (3)
I believe the answer is:
lot
'plenty' is the definition.
(thesaurus)
'of clothing' is the wordplay.
'of' indicates the answer is hidden within the clue.
'LOT' can be found hidden inside 'clothing'.
(Other definitions for lot that I've seen before include "Large amount; Abraham's nephew" , "A person's luck" , "man rescued by angels" , "one whose wife was backward-looking?" , "Abraham's nephew (OT)" .)