Best system for gambling (4)
I believe the answer is:
bets
'best system for gambling' is the definition.
I can't tell whether this defines the answer.
'system for gambling' is the wordplay.
'system' becomes 's' (this might be a standard abbreviation of which I'm unaware).
'for' says to put letters next to each other (I've seen this in other clues).
'gambling' becomes 'bet' (bet is a kind of gambling).
's' put after 'bet' is 'BETS'.
Can you help me to learn more?
(Other definitions for bets that I've seen before include "plays" , "Gambles" , "Wager, stake" , "Wagers" , "Makes wager" .)