Girl set to cook tough piece of meat (7)
I believe the answer is:
gristle
'tough piece of meat' is the definition.
I can't tell whether this definition defines the answer.
'girl set to cook' is the wordplay.
'to cook' is an anagram indicator.
'girl'+'set'='girlset'
'girlset' is an anagram of 'GRISTLE'.
Can you help me to learn more?
(Other definitions for gristle that I've seen before include "Tough flexible tissue" , "Stir leg to get tough tissue in meat" , "Glister with animal tissue" , "Chewy cartilage" , "Cartilage in meat" .)