Common complaint about antique (4)
I believe the answer is:
cold
'common complaint' is the definition.
'cold' can be an answer for 'complaint' (cold is a kind of health problem). I am not certain of the 'common' bit.
'about antique' is the wordplay.
'about' becomes 'c' (circa).
'antique' becomes 'old' (similar in meaning).
'c'+'old'='COLD'
Can you help me to learn more?
(Other definitions for cold that I've seen before include "made of stone" , "Chilly; unemotional" , "Mild viral infection, very common" , "Unsympathetic" , "Unfeeling" .)