National League team

I think it could be either:

reds

mets

'national league team' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for reds that I've seen before include "These are not right" , "Left-wingers" , "Tidies up" , "Colourful communists" , "Colours for communists" .)

I've seen this clue in The Mirror.

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