Celeb, fellow spinning round with energy (4)
I believe the answer is:
name
'celeb' is the definition.
(I've seen this in another clue)
'fellow spinning round with energy' is the wordplay.
'fellow spinning round' becomes 'nam' (I can't explain this - if you can you should give a lot more credence to this answer).
'with' is a charade indicator (letters next to each other).
'energy' becomes 'e' (physics symbol as in E=mca).
'nam'+'e'='NAME'
Can you help me to learn more?
(Other definitions for name that I've seen before include "Amen (anag)" , "Moniker" , "By which one is known" , "Baptise" , "Specify; famous person" .)