To speak raspingly sounds great (5)
I believe the answer is:
grate
'to speak raspingly' is the definition.
I can't judge whether this defines the answer.
'sounds great' is the wordplay.
'sounds' shows a homophone (sound like).
'great' is a homophone of 'GRATE'.
Can you help me to learn more?
(Other definitions for grate that I've seen before include "Irritate - rasp - fireplace" , "Shred - jar" , "Reduce to small shreds" , "part of fireplace" , "Jar; fireplace" .)