Ringing plastic surgeon about dad's rear and hip (10)
I believe the answer is:
resounding
'ringing' is the definition.
('resound' can be a synonym of 'ring')
'plastic surgeon about dad's rear and hip' is the wordplay.
I cannot quite understand how this works, but
'about' could be 're' (regarding) and 're' is located in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is located in the answer.
'hip' could be 'in' (I've seen this in other clues) and 'in' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for resounding that I've seen before include "Booming" , "Decisive" .)