Feature of jacket has lines cut by someone clumsy (5)
I believe the answer is:
lapel
'feature of jacket' is the definition.
(I've seen this before)
'lines cut by someone clumsy' is the wordplay.
I cannot really see how this works, but
'lines' could be 'l' (abbreviation as in lines of poetry) and 'l' is located in the answer.
'someone' could be 'ape' (ape is a kind of someone) and 'ape' is located in the answer.
A single letter 'l' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
'has' acts as a link.
Can you help me to learn more?
(Other definitions for lapel that I've seen before include "Feature of a jacket" , "Turned-back part of coat collar" , "Part of a folded back collar" , "Lower part of collar on coat" , "Jacket fold" .)