Crossword Genius

Handle with generosity (5)

Ross

I believe the answer is:

treat

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

This clue might be a double definition.

'handle' is the first definition.
(I know that handle can be written as treat)

'generosity' is the second definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.

'with' acts as a link.

Can you help me to learn more?

(Other definitions for treat that I've seen before include "Medicate" , "Behave towards" , "pay for another" , "Deal with - source of great pleasure" , "Shout" .)

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