Bean from Cairo brewed in vacated hut (7)
I believe the answer is:
haricot
'bean' is the definition.
(haricot is a type of bean)
'cairo brewed in vacated hut' is the wordplay.
'brewed' indicates anagramming the letters.
'in' indicates putting letters inside.
'vacated' means to remove the middle letters (internal letters vacate the word).
'hut' with its middle taken out is 'ht'.
'cairo' anagrammed gives 'arico'.
'arico' inserted inside 'ht' is 'HARICOT'.
'from' acts as a link.
(Other definitions for haricot that I've seen before include "Type of bean in a chariot" , "French bean" , "Vegetable" , "kind of ragout" , "Variety of bean" .)