County town of Suffolk (7)
I believe the answer is:
ipswich
'county town of suffolk' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for ipswich that I've seen before include "Wolsey's birthplace" , "County town of Suffolk" , "Country town of Suffolk" , "Suffolk town on the River Orwell" , "9 across town" .)