Son likes playing, keeping dry in game (8)
I believe the answer is:
skittles
'game' is the definition.
(skittles is a kind of game)
'son likes playing keeping dry' is the wordplay.
'son' becomes 's'.
'playing' is an anagram indicator.
'keeping' indicates putting letters inside.
'dry' becomes 'tt' (abbreviation for teetotal).
'likes' with letters rearranged gives 'kiles'.
'kiles' placed around 'tt' is 'kittles'.
's'+'kittles'='SKITTLES'
'in' is the link.
(Other definitions for skittles that I've seen before include "Bowling game" , "Ninepins" , "bowling pursuit" , "Pub game" , "Game played in an alley" .)