See, with touring group, capital city (7)
I believe the answer is:
colombo
'capital city' is the definition.
(commercial capital of Sri Lanka)
'see with touring group' is the wordplay.
'see' becomes 'lo' (archaic word meaning 'look!').
'with touring' is an insertion indicator (to tour can mean to go around).
'group' becomes 'combo' (a combo can mean a musical group).
'lo' put into 'combo' is 'COLOMBO'.
(Other definitions for colombo that I've seen before include "Asian capital" , "Capital of Sri Lanka" , "City of Sri Lanka" , "Sri Lankan port" , "Sri Lankan city" .)