One manipulates very big writer back at hotel (9)
I believe the answer is:
osteopath
'one manipulates very' is the definition.
I can't tell whether this defines the answer.
'big writer back at hotel' is the wordplay.
'big' becomes 'os'.
'writer' becomes 'poet' (poet is a kind of writer).
'back' says the letters should be written backwards.
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'poet' written backwards gives 'teop'.
'os'+'teop'+'at'+'h'='OSTEOPATH'
Can you help me to learn more?
(Other definitions for osteopath that I've seen before include "Bonesetter" , "Specialist in manipulation of bones and muscles" , "Therapist who manipulates bones and muscles" , "One who treats illness by manipulating bones and muscles" , "Bone manipulator" .)