Young performer beginning to entertain the French (7)
I believe the answer is:
starlet
'young performer' is the definition.
'starlet' can be an answer for 'performer' (starlet is a kind of performer). I am not sure about the 'young' bit.
'beginning to entertain the french' is the wordplay.
'beginning' becomes 'start' (synonyms).
'to entertain' means one lot of letters goes inside another.
'the french' becomes 'le' ('the' in French).
'start' going around 'le' is 'STARLET'.
Can you help me to learn more?
(Other definitions for starlet that I've seen before include "Promising young film actress" , "young celebrity" , "Young film actress with a future?" .)