He provides a new setting for the doctor (6)
I believe the answer is:
andrew
'he' is the definition.
(I've seen this before)
'a new setting for the doctor' is the wordplay.
'setting for' indicates putting letters inside.
'the doctor' becomes 'Dr' (abbreviation).
'new' placed around 'dr' is 'ndrew'.
'a'+'ndrew'='ANDREW'
'provides' is the link.
(Other definitions for andrew that I've seen before include "apostle" , "Nov thirtieth this saint's day" , "- Marvell, seventeenth century poet" , "- Motion, Poet Laureate" , "Composer of many musicals ..." .)