Flounder, perhaps, in search in pursuit of accommodation (8)
I believe the answer is:
flatfish
'flounder perhaps' is the definition.
(flounder is a kind of flatfish)
'search in pursuit of accommodation' is the wordplay.
'search' becomes 'fish' (fishing is a kind of searching).
'in pursuit of' is a charade indicator (letters next to each other) (some letters chase after others).
'accommodation' becomes 'flat' (type of residence).
'fish' after 'flat' is 'FLATFISH'.
'in' is the link.
(Other definitions for flatfish that I've seen before include "could be a fluke" , "Swimmer" , "Sole, plaice etc" , "Plaice or sole, for example" , "Flounder, perhaps" .)