Hold up electronic lighter (5)
I believe the answer is:
barge
'lighter' is the definition.
(synonyms)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for barge that I've seen before include "Jostle; a boat" , "Long, flat-bottomed boat" , "Cargo vessel" , "Push - boat" , "Freight-carrying boat" .)