Crossword Genius

Hold up electronic lighter (5)

Ross

I believe the answer is:

barge

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'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" .)

I've seen this clue in The Telegraph.
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