Youngster cooking ate leg (6)
I believe the answer is:
eaglet
'youngster' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'cooking ate leg' is the wordplay.
'cooking' indicates anagramming the letters (cook can mean to falsify or distort).
'ate'+'leg'='ateleg'
'ateleg' with letters rearranged gives 'EAGLET'.
Can you help me to learn more?
(Other definitions for eaglet that I've seen before include "Young keen-sighted bird" , "Raptor chick" , "Eyrie resident" , "Get ale for the young bird" , "A young raptor" .)