Produce much, and many more (4)

I believe the answer is:

farm

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'produce' is the definition.
(synonyms)

'much and many more' is the wordplay.
'much' becomes 'far' (I've seen this in another clue).
'and' means one lot of letters go next to another.
'many more' becomes 'm' (I am not sure about the 'many' bit.).
'far'+'m'='FARM'

Can you help me to learn more?

(Other definitions for farm that I've seen before include "See 5" , "Manage land for crops or livestock" , "Cold Comfort --" , "Rural establishment" , "Use the land" .)

I've seen this clue in the Evening Standard.

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