Crossword Genius

Paying for light blue (8,5)

Ross

I believe the answer is:

shouting match

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'blue' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'paying for light' is the wordplay.
'paying for' becomes 'shouting' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'light' becomes 'match' (match is a kind of light).
'shouting'+'match'='SHOUTING MATCH'

Can you help me to learn more?

(Other definitions for shouting match that I've seen before include "Loud quarrel (colloq.)" , "row" .)

I've seen this clue in the Sydney Morning Herald.
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