Trimmed a ragged drape (5)
I believe the answer is:
pared
'trimmed' is the definition.
('pare' can be a synonym of 'trim')
'a ragged drape' is the wordplay.
'a ragged' indicates anagramming the letters.
'drape' anagrammed gives 'PARED'.
(Other definitions for pared that I've seen before include "Peeled the outer surface" , "Trimmed - peeled" , "Did prune" , "Whittled as with pencil" , "Of a fruit, peeled" .)