Partly uniform in cut perhaps (5)
I believe the answer is:
tunic
'partly uniform' is the definition.
(I've seen this before)
'in cut perhaps' is the wordplay.
'perhaps' is an anagram indicator.
'in'+'cut'='incut'
'incut' with letters rearranged gives 'TUNIC'.
(Other definitions for tunic that I've seen before include "Simple garment" , "Short uniform coat" , "piece of clothing" , "Loose sleeveless garment" , "Upper garment, for a soldier say" .)