Moves about restlessly, making bets (8)
I believe the answer is:
flutters
'moves' is the definition.
(flutter is a kind of move)
I cannot understand how the rest of the clue works.
(Other definitions for flutters that I've seen before include "bats" , "23 [BETTER] has" , "Small bets; flaps" , "Moves like a butterfly, towardsthe bookies?" .)