One using both hands on bars while pedalling? (7)
I believe the answer is:
pianist
'one using both hands on bars while pedalling?' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'one' is the wordplay.
I cannot quite understand how this works, but
'one' could be 'an' (an apple is one apple) and 'an' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for pianist that I've seen before include "Ivories tinkler" , "key performer" , "Musician" , "Key expert" , "Person at keyboard" .)