Playing the cello, I'd make quite an impact on (7)
I believe the answer is:
collide
'quite an impact on' is the definition.
I can't judge whether this defines the answer.
'playing the cello i'd' is the wordplay.
'playing' indicates an anagram.
'cello'+'id'='celloid'
'celloid' is an anagram of 'COLLIDE'.
'make' is the link.
Can you help me to learn more?
(Other definitions for collide that I've seen before include "Smash together" , "Clash; conflict" , "Run into" , "Come into conflict" , "Hit" .)