Pilot I suspect circling right capital city (7)
I believe the answer is:
tripoli
'capital city' is the definition.
(capital city of Libya)
'pilot i suspect circling right' is the wordplay.
'suspect' indicates an anagram (a suspicious or unusual spelling).
'circling' indicates putting letters inside (circling can mean going around or containing).
'right' becomes 'r' (common abbreviation).
'pilot'+'i'='piloti'
'piloti' is an anagram of 'tipoli'.
'tipoli' placed around 'r' is 'TRIPOLI'.
(Other definitions for tripoli that I've seen before include "Capital of Libya" , "City in Libya - city in Lebanon" , "North African port" , "Middle East port" , "North African city" .)