Quarrels that come in series? (4)

I believe the answer is:

rows

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'quarrels' is the definition.
('row' can be a synonym of 'quarrel')

I don't understand the remainder of the clue.

(Other definitions for rows that I've seen before include "Scraps" , "emotional exchanges" , "Puts one's oar in" , "Uses oars" , "Tiers" .)

I've seen this clue in the Evening Standard.

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