The course manuals presumably read by those at home on the range who want to dish it out (7-5)

'manuals presumably read by those at home on the range who want to dish it out' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'the course' is the wordplay.
I cannot quite understand how this works, but
'course' could be 's' and 's' is located in the answer.
The remaining letters 'cookerybook' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?