Ah, how lovely to be kept waiting! (2,3)
I believe the answer is:
on ice
'waiting' is the definition.
(I've seen this before)
'ah how lovely to be kept' is the wordplay.
I cannot really see how this works, but
'lovely' could be 'nice' (both can mean pleasant) and 'nice' is found within the answer.
A single letter 'o' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for on ice that I've seen before include "Predatory insect" , "one way to serve gin" , "Kept chilled" , "Postponed (fig.)" , "not to be furthered?" .)