Crossword Genius

Has some homeless animal (3)

Ross

I believe the answer is:

ass

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'animal' is the definition.
(term for a donkey)

'has some homeless' is the wordplay.
'ASS' is hidden in amongst the letters.
But, I am not sure how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for ass that I've seen before include "jack" , "Trump's behind" , "Animal of horse family" , "Titania loved one" , "oaf" .)

I've seen this clue in The Globe and Mail.
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