Left frayed cloth (4)
I believe the answer is:
felt
'cloth' is the definition.
(felt is a kind of cloth)
'left frayed' is the wordplay.
'frayed' indicates an anagram.
'left' is an anagram of 'FELT'.
(Other definitions for felt that I've seen before include "woolly material" , "Soft fabric; touched" , "Cloth; touched" , "Rather thought; a cloth" , "Experienced, say, emotion" .)