Drinker may use this bedding on a farm (5)
I believe the answer is:
straw
'drinker may use this bedding on a farm' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
This is all the clue.
Can you help me to learn more?
(Other definitions for straw that I've seen before include "Animal bedding" , "Means to absorb" , "Stalk - tube for drinking" , "Bedding material for horses etc" , "Stalk of dry grass" .)