A rising singer (4)
I believe the answer is:
lark
This clue might be a double definition.
'a rising' is the first definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'singer' is the second definition.
(lark is a kind of birdanimal)
Can you help me to learn more?
(Other definitions for lark that I've seen before include "One in exaltation" , "One gets up early" , "Songbird; escapade" , "High-flying songbird" , "Amusing adventure; bird" .)