He lost bananas in budget accommodation (6)
I believe the answer is:
hostel
'budget accommodation' is the definition.
'hostel' can be an answer for 'accommodation' (I've seen this before). I'm unsure of the 'budget' bit.
'he lost bananas' is the wordplay.
'bananas' indicates anagramming the letters (bananas can informally mean crazy).
'he'+'lost'='helost'
'helost' anagrammed gives 'HOSTEL'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for hostel that I've seen before include "Lodging-house for students, backpackers, etc." , "B & B" , "Cheap lodgings" , "boarding-house for youths?" , "Place providing cheap lodging" .)