Subject = Anything To Do With Games

[heathergod]

Gongs force buddhist priest to eat right after past-their-sell-by-date chopped offal. (4,6,6)

[gen2]

???? Bronze Medals

Buddhist Priest = bonze - - - (eating Right) => BRONZE
Gongs = MEDALS

Not sure of the first word yet

[gen2]

As an alternative,
'Gongs' could simply be the definition and the answer could then be
Gold Silver Bronze

Bronze is derived as stated above.
'past their sell-by date' = OLD
Offal = LIVER
I am just left to explain the G and the S

[slaney]

Perhaps force=G, and it's OLDS - plural?

[heathergod]

thank you all for your help - you are brilliant!