Complaint in court? (6,5)
I believe the answer is:
tennis elbow
'complaint' is the definition.
(I've seen this before)
'court?' is the wordplay.
I cannot really understand how this works, but
'court?' could be 'tennis' (tennis court is a kind of court) and 'tennis' is present in the answer.
The remaining letters 'elbow' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'in' acts as a link.
Can you help me to learn more?
(Other definitions for tennis elbow that I've seen before include "problem for person serving" , "Muscular injury from exercise" , "Joint inflammation" , "Painful condition" , "Tendon problem" .)