Pharmacist in Norfolk town receiving writer with hesitation (9)
I believe the answer is:
dispenser
'pharmacist' is the definition.
(I've seen this before)
'norfolk town receiving writer with hesitation' is the wordplay.
'norfolk town' becomes 'diss' (I've seen this before).
'receiving' means one lot of letters goes inside another.
'writer with' becomes 'pen' (I've seen this in other clues).
'hesitation' becomes 'er'.
'diss' enclosing 'pen' is 'dispens'.
'dispens'+'er'='DISPENSER'
'in' acts as a link.
(Other definitions for dispenser that I've seen before include "one to give out" , "ATM" , "One filling prescription" , "Chemist" , "Pharmacist" .)