Pack some garments to wear (4)
I believe the answer is:
stow
'pack' is the definition.
(I know that stow is a more specific form of pack)
'some garments to wear' is the wordplay.
'some' indicates the answer is hidden within the clue (some parts of the word are used).
'STOW' can be found hidden inside 'garments to wear'.
(Other definitions for stow that I've seen before include "Pack, put away" , "Store away tidily" , "Put tidily away" , "Deposit" , "Place in storage receptacle" .)