Eccentric offering of a tea shop? (9)
I believe the answer is:
fruitcake
I believe this is a double definition.
'eccentric' is the first definition.
(I've seen this before)
'offering of a tea shop?' is the second definition.
(a tea shop might sell a fruit cake)
(Other definitions for fruitcake that I've seen before include "Dundee dessert - madman" , "nut?" , "Nutty" , "fly cemetery?" , "Eccentric person" .)