Odd nature of drink dispenser (3,3)
I believe the answer is:
tea urn
'drink dispenser' is the definition.
'odd nature' is the wordplay.
'odd' indicates anagramming the letters.
'nature' anagrammed gives 'TEA-URN'.
'of' is the link.
(Other definitions for tea urn that I've seen before include "source of refreshment" , "Water boiler" , "large vessel for drink" , "item in canteen" , "Nature (anag)" .)