Worn out man inside given food (6)
I believe the answer is:
frayed
'worn out' is the definition.
(fraying is a kind of wearing out)
'man inside given food' is the wordplay.
'man' becomes 'ray' (Man Ray was a 20th-century artist).
'inside' means one lot of letters goes inside another.
'given food' becomes 'fed' (I've seen this before).
'ray' going within 'fed' is 'FRAYED'.
(Other definitions for frayed that I've seen before include "Well worn with loose threads" , "Tattered and threadbare" , "Tattered and worn at edges" , "Became strained" , "Threadbare and worn" .)