Brentford players, all six-footers (4)

I believe the answer is:

bees

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'six-footers' is the definition.
Although both the answer and definition are plural nouns, I can't understand how one could define the other.

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for bees that I've seen before include "Buzzers" , "Four-winged insects" , "Hairy-bodied insects" , "Social workers?" , "Honey producers" .)

I've seen this clue in the Evening Standard.

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