Eagles' running back eats treat (5)

I believe the answer is:

nurse

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

'treat' is the definition.
(nursing is a kind of treating)

'eagles' running back eats' is the wordplay.
'NURSE' is hidden back-to-front within the letters.
However, I'm uncertain how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for nurse that I've seen before include "Hospital tender" , "Slow-moving shark" , "Hospital carer" , "Nanny" , "Trained carer" .)

I've seen this clue in The Independent.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.