One in penny casino game losing pound in turn (9)

I believe the answer is:

pirouette

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'turn' is the definition.
(I've seen this before)

'one in penny casino game losing pound' is the wordplay.
'one in penny' becomes 'pi' (I am not sure about this - if you are sure you should believe this answer much more).
'casino game' becomes 'roulette' (I've seen this before).
'losing' is a deletion indicator.
'pound' becomes 'L' (the pound sign is based on an L).
'roulette' with 'l' removed is 'rouette'.
'pi'+'rouette'='PIROUETTE'

'in' is the link.

Can you help me to learn more?

(Other definitions for pirouette that I've seen before include "A dancer's spinning movement on tiptoe" , "Take turn on foot" , "Spin on one foot" , "Whirl round on one's toes" , "Rapid spin of the body on the toes in ballet" .)

I've seen this clue in The Times.

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