Lean tourist sure to spoil very dangerous game (7,8)

I believe the answer is:

russian roulette

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

'lean tourist sure to spoil' is the wordplay.
'to spoil' indicates an anagram.
'lean'+'tourist'+'sure'='leantouristsure'
'leantouristsure' is an anagram of 'RUSSIAN ROULETTE'.

'very' is the link.
This may not be correct. It may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for russian roulette that I've seen before include "Dangerous game of chance" , "Deadly gamble" , "deadly stunt" , "chancy business" , "risky business" .)

I've seen this clue in The Daily Express.

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