Instagram bathroom in freezing accommodation (5)
I believe the answer is:
igloo
'freezing accommodation' is the definition.
'igloo' can be an answer for 'accommodation' (I have seen 'cold accommodation' mean 'igloo' so perhaps 'accommodation' could also mean 'igloo'). I'm not certain of the 'freezing' bit.
'instagram bathroom' is the wordplay.
'instagram' becomes 'ig' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'bathroom' becomes 'loo' (loo is a kind of bathroom).
'ig'+'loo'='IGLOO'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for igloo that I've seen before include "Icy home for Eskimo" , "Eskimo's home" , "Dome-shaped dwelling" , "Snow-house" , "Home made of blocks of snow" .)