Discounts are best taken advantage of (7)

I believe the answer is:

rebates

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

'discounts' is the definition.
(I know this)

'are best taken advantage of' is the wordplay.
'best' becomes 'a'.
'taken' suggests deleting specific letters.
'advantage of' becomes 'bates' (I am not sure about this - if you are sure you should believe this answer much more).
'are' with 'a' taken out is 're'.
're'+'bates'='REBATES'

Can you help me to learn more?

(Other definitions for rebates that I've seen before include "Refunds -- discounts" , "Refunds of some of the amounts paid" , "Partial refunds, reductions in payments" , "Retrospective discounts" , "Monies having to be sent back" .)

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

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.