Most expensive honey (7)
I believe the answer is:
dearest
This clue is a double definition.
'most expensive' is the first definition.
('dear' can be similar in meaning to 'expensive')
'honey' is the second definition.
(I know that honey can be written as dearest)
(Other definitions for dearest that I've seen before include "Loved one" , "Most precious or expensive" , "The beloved one is most costly" , "Most loved or expensive" , "Most expensive or beloved" .)