Crossword Genius

Have tsetse flies surrounded animal attendents? (4)

Ross

I believe the answer is:

vets

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

'flies surrounded animal attendents?' is the definition.
I can't judge whether this defines the answer.

'have tsetse' is the wordplay.
'VETS' is hidden in amongst the letters.
But, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for vets that I've seen before include "13 doctors?" , "Ex-servicemen and women, in short" , "Screens the animal doctors" , "Siegfried and Tristan Farnon, for example" , "Inspects (animals?)" .)

I've seen this clue in The Mirror.
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