A pass dividing the French in field game (8)
I believe the answer is:
lacrosse
'field game' is the definition.
(lacrosse is a kind of field game)
'a pass dividing the french' is the wordplay.
'pass' becomes 'cross' (crossing is a kind of passing).
'dividing' indicates putting letters inside (inserted letters divide the word).
'the french' becomes 'le' ('the' in French).
'a'+'cross'='across'
'across' going inside 'le' is 'LACROSSE'.
'in' is the link.
(Other definitions for lacrosse that I've seen before include "Sport played with sticks" , "Ball game using netted stick" , "Score's uncertain after the Spanish" , "Game played with a netted stick" , "Like thirteen of the other clues in the French" .)