Crossword Genius

Running or quarrelling? (2,1,3)

Ross

I believe the answer is:

in a row

I'm a little stuck... Click here to teach me more about this clue!

'running' is the definition.
(I've seen this before)

'quarrelling?' is the wordplay.
I cannot quite understand how this works, but
'quarrelling?' could be 'row' (a row is a quarrel or argument) and 'row' is found in the answer.
The remaining letters 'ina' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

'or' acts as a link.

Can you help me to learn more?

(Other definitions for in a row that I've seen before include "Lined up" , "arguing?" , "successively" , "becoming involved in disturbance" , "One after another" .)

I've seen this clue in The Independent.
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