Running or quarrelling? (2,1,3)
I believe the answer is:
in a row
'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" .)