Course includes permit for game (8)
I believe the answer is:
roulette
'game' is the definition.
(roulette is a kind of game)
'course includes permit' is the wordplay.
'course' becomes 'route' (I've seen this before**).
'includes' means one lot of letters goes inside another.
'permit' becomes 'let' ('let' can be a synonym of 'permit').
'route' going around 'let' is 'ROULETTE'.
'for' is the link.
(Other definitions for roulette that I've seen before include "Gambling game with spinning wheel and ball" , "If Russian, it's a very dangerous game" , "Wheel of fortune" , "Spinning-wheel game" , "French gambling" .)