Help cheat in game (10)
I believe the answer is:
backgammon
'game' is the definition.
(backgammon is a kind of game)
'help cheat' is the wordplay.
'help' becomes 'back'.
'cheat' becomes 'gammon' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'back'+'gammon'='BACKGAMMON'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for backgammon that I've seen before include "Game with 24 points" , "Players' race to clear tables" , "Board game for two players" , "Board game played with dice" , "dicey contest" .)