Retailer gets position with hesitation (9)
I believe the answer is:
stationer
'retailer' is the definition.
(I know that stationer is a type of retailer)
'position with hesitation' is the wordplay.
'position' becomes 'station' (station is a kind of position).
'with hesitation' becomes 'er' (I am not sure about this - if you are sure you should believe this answer much more).
'station'+'er'='STATIONER'
'gets' is the link.
Can you help me to learn more?
(Other definitions for stationer that I've seen before include "Poster" , "Tears into (anag.)" , "Writing-materials shop" , "One assigning position" , "Shopkeeper" .)