A 'do from barber in Seville? (5)

I believe the answer is:

rinse

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

'a 'do' is the definition.
I can't tell whether this definition defines the answer.

'from barber in seville?' is the wordplay.
'from' says the answer is hidden in the clue.
'RINSE' is hidden in the letters of 'barber in seville'.

Can you help me to learn more?

(Other definitions for rinse that I've seen before include "Sluice" , "Hair preparation" , "Use water to remove soap" , "Wash off surface dirt" , "Hair tint" .)

I've seen this clue in The Mirror.

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