Big look around house (5)
I believe the answer is:
igloo
'house' is the definition.
(I know that igloo is a type of house)
'big look around' is the wordplay.
'around' says the answer is hidden in the clue.
'IGLOO' can be found hidden inside 'big look'.
(Other definitions for igloo that I've seen before include "Hut built of snow" , "Inuit's home" , "From domed hut" , "Ice-block construction" , "packed house" .)