Have a flutter on pound turnover during play (6)
I believe the answer is:
gamble
'play' is the definition.
(gambling is a kind of playing)
'have a flutter on pound turnover during' is the wordplay.
'have a flutter' becomes 'game' (I've seen this before).
'on pound' becomes 'lb' (synonyms. I am not sure about the 'on' bit.).
'turnover' is a reversal indicator.
'during' indicates putting letters inside.
'lb' reversed gives 'bl'.
'game' enclosing 'bl' is 'GAMBLE'.
Can you help me to learn more?
(Other definitions for gamble that I've seen before include "Run a risk" , "Take risks" , "Place bets" , "Flutter" , "Bet -- Procter's partner" .)