Start to relish a good scrap (3)
I believe the answer is:
rag
'scrap' is the definition.
(I've seen this before)
'start to relish a good' is the wordplay.
'start to' says to take the initial letters.
'good' becomes 'g' (abbreviation).
The first letter of 'relish' is 'r'.
'r'+'a'+'g'='RAG'
(Other definitions for rag that I've seen before include "you lose in temper?" , "Piece of cloth and student fun" , "Scott Joplin composition, for example" , "Duster, perhaps" , "Make fun of; scrap" .)