Sailor involved in worrying street crime (10)
I believe the answer is:
carjacking
'sailor involved in worrying street crime' is the definition.
I can't judge whether this defines the answer.
'sailor involved in worrying' is the wordplay.
'sailor' becomes 'jack' (informal term for a sailor).
'involved in' means one lot of letters goes inside another.
'worrying' becomes 'caring'.
'jack' inserted into 'caring' is 'CARJACKING'.
Can you help me to learn more?
(Other definitions for carjacking that I've seen before include "crime?" , "Vehicle stealing" , "Maybe taking taxi from driver" .)