Crossword Genius

Good argument for increase (4)

Ross

I believe the answer is:

grow

'increase' is the definition.
(growing is a kind of increasing)

'good argument' is the wordplay.
'good' becomes 'g' (abbreviation).
'argument' becomes 'row' (I've seen this before).
'g'+'row'='GROW'

'for' is the link.

(Other definitions for grow that I've seen before include "Gain in size" , "Become bigger" , "Mature" , "Increase in size" , "Develop; increase" .)

I've seen this clue in The Telegraph.
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