County cricket side in Mediterranean city (6)
I believe the answer is:
tyrone
'county' is the definition.
'cricket side in mediterranean city' is the wordplay.
'cricket side' becomes 'on'.
'in' is an insertion indicator.
'mediterranean city' becomes 'tyre' (I've seen this before).
'on' placed into 'tyre' is 'TYRONE'.
(Other definitions for tyrone that I've seen before include "Irish county" , "Traditional county of Northern Ireland" , "County of N. Ireland" , "An Ulster county" , "Omagh its chief town" .)