Doctor's first in nearby, in this manner? (7)
I believe the answer is:
bedside
'this manner?' is the definition.
(bedside manner is a kind of manner)
'doctor's first in nearby' is the wordplay.
'doctor's first' becomes 'd' (1st letter of 'doctor').
'in' indicates putting letters inside.
'nearby' becomes 'beside'.
'd' inserted within 'beside' is 'BEDSIDE'.
'in' is the link.
(Other definitions for bedside that I've seen before include "(Formerly?) a doctor's manner" , "A GP needs a good . . . . . . . manner" , "Manner shown to the sick?" , "Doctor needs a good ... manner" .)