Unfortunate cut in garb (5)
I believe the answer is:
tunic
'garb' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'unfortunate cut in' is the wordplay.
'unfortunate' indicates an anagram.
'cut'+'in'='cutin'
'cutin' anagrammed gives 'TUNIC'.
Can you help me to learn more?
(Other definitions for tunic that I've seen before include "Loose-fitting shirt or cloak" , "Simple garment" , "Close fitting jacket as part of uniform" , "Cut in (anag)" , "Upper garment, for a soldier say" .)