Crossword Genius

Guard's wayward daughter dismissed sweetener (5)

Ross

I believe the answer is:

sugar

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

'sweetener' is the definition.
(I know that sugar is a type of sweetener)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for sugar that I've seen before include "e.g. Glucose" , "Plantation product" , "Argus (anag.)" , "rotter!" , "--- Ray Robinson, boxer" .)

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