In favour of tax growth (7)
I believe the answer is:
process
'growth' is the definition.
The definition and answer can be both natural processes as well as being singular nouns.
Maybe there's a link between them I don't understand?
'in favour of tax' is the wordplay.
'in favour of' becomes 'pro' (I've seen this before).
'tax' becomes 'cess' (I've seen this before).
'pro'+'cess'='PROCESS'
Can you help me to learn more?
(Other definitions for process that I've seen before include "Move in formation" , "The case" , "that's the course of action" , "Advance ceremoniously" , "Method of production" .)