Pleasing quality, allowing extra time to pay (5)

I believe the answer is:

grace

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'pleasing quality' is the definition.
'grace' can be an answer for 'quality' (grace is a kind of quality). I'm not sure about the 'pleasing' bit.

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for grace that I've seen before include "Mealtime prayer" , "Old batsman" , "Meal blessing" , "Elegance; girl's name" , "For example, Euphrosyne" .)

I've seen this clue in The Times.

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