Treatment at flexible GP's office (7,7)
I believe the answer is:
plastic surgery
'treatment' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'at flexible gp's office' is the wordplay.
'at' means one lot of letters go next to another.
'flexible' becomes 'plastic' (I've seen this in another clue).
'gp's office' becomes 'surgery' (I can't justify this - if you can you should believe this answer much more).
'plastic' put next to 'surgery' is 'PLASTIC SURGERY'.
Can you help me to learn more?
(Other definitions for plastic surgery that I've seen before include "Bodily reconstruction" , "certain operations" .)