He has a job to start the game! (6)
I believe the answer is:
beater
'he' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'a job to start the game' is the wordplay.
I cannot quite see how this works, but
'a' is present in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
The remaining letters 'beer' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'has' acts as a link.
Can you help me to learn more?
(Other definitions for beater that I've seen before include "Mixing implement; one employed on shoot" , "following 28 [SILVER]" , "One who makes birds fly for a shoot" , "Game raiser at a shoot" , "Game employee" .)