Hatch, but a nice change is possible (8)
I believe the answer is:
incubate
'hatch' is the definition.
(I know that hatch can be written as incubate)
'but a nice change is possible' is the wordplay.
'but a nice' can be anagrammed to 'INCUBATE'.
But, I am not sure how this is indicated.
Can you help me to learn more?
(Other definitions for incubate that I've seen before include "Sit on (eggs)" , "Develop slowly" , "Develop under favourable conditions, bacteria say" , "Keep (eggs) warm" , "Hatch eggs by warmth of bird's body" .)