Gets a new fellow correct phobia (5,6)
I believe the answer is:
stage fright
'phobia' is the definition.
(I know that stage fright is a phobia)
'gets a new fellow correct' is the wordplay.
'new' indicates anagramming the letters.
'fellow' becomes 'f' (abbreviation - of a society etc.).
'correct' becomes 'right' (right can mean correct).
'gets'+'a'='getsa'
'getsa' with letters rearranged gives 'stage'.
'stage'+'f'+'right'='STAGE-FRIGHT'
(Other definitions for stage fright that I've seen before include "Performer's nervousness" , "state of nerves" , "Pre-performance nerves" , "Performer's fear" , "Panic experienced by performer" .)