Tribe integrated into the Saracens (4)

I believe the answer is:

race

I'm a little stuck... Click here to teach me more about this clue!

'tribe' is the definition.
(I've seen this in another clue)

'integrated into the saracens' is the wordplay.
'RACE' is hidden within the letters.
But, I am unsure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for race that I've seen before include "Run fast" , "Care about contest" , "Breed" , "People - sprint - competition" , "Run; nation" .)

I've seen this clue in the Evening Standard.

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