Someone trying to overtake American truck driver from LA (8)
I believe the answer is:
teamster
'driver from la' is the definition.
'teamster' can be an answer for 'driver' (teamster is a kind of driver). I am not certain of the 'from la' bit.
'someone trying to overtake american truck' is the wordplay.
I cannot really see how this works, but
'someone' could be 'ms' (Ms. is an example) and 'ms' is found within the answer.
'american' could be 'a' (common abbreviation - e.g. in organisation names) and 'a' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for teamster that I've seen before include "US lorry driver" , "One drives" , "Truck driver" , "truck-driver" .)