Crossword Genius

Runs with left-wingers (5)

Ross

I believe the answer is:

trots

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This might be a double definition.

'runs' is the first definition.
(trotting is a kind of running)

'left-wingers' is the second definition.
Although both the answer and definition are plural nouns, I can't understand how they can define each other.

'with' acts as a link.

Can you help me to learn more?

(Other definitions for trots that I've seen before include "jogs" , "Runs slowly" .)

I've seen this clue in The Sun.
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