Small number excited? (6,2)
I believe the answer is:
turned on
'excited?' is the definition.
('turn on' can be a synonym of 'excite')
'small number' is the wordplay.
I cannot quite understand how this works, but
'number' could be 'turn' (synonyms) and 'turn' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for turned on that I've seen before include "TV working?" , "Activated - aroused" , "Stimulated" , "Suddenly attacked - state of ecstasy - high" , "Excited" .)