Crossword Genius

Silent afterthought in complaint (5)

Ross

I believe the answer is:

mumps

'complaint' is the definition.
(mumps is a kind of health problem)

'silent afterthought' is the wordplay.
'silent' becomes 'mum' (synonyms).
'afterthought' becomes 'ps' (ps stands for postscript).
'mum'+'ps'='MUMPS'

'in' is the link.

(Other definitions for mumps that I've seen before include "Childhood infection" , "Complaint" , "Virus disease causing painful swellings in neck" , "Viral disease, dangerous to adult males" , "Swelling disease" .)

I've seen this clue in The Globe and Mail.
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