Transport bishop to the States? (3)
I believe the answer is:
bus
'transport' is the definition.
(bus is a kind of transport)
'bishop to the states?' is the wordplay.
'bishop' becomes 'b' (abbreviation used in chess).
'to the states?' becomes 'us' (abbreviation for the United States).
'b'+'us'='BUS'
(Other definitions for bus that I've seen before include "Public service vehicle" , "Something caught" , "Motor-coach" , "Mode of public transport" , "Large passenger vehicle - small business!" .)