Hunter’s neat house with outside pool (8)
I believe the answer is:
foxhound
'hunter's' is the definition.
(I've seen this before)
'neat house with outside pool' is the wordplay.
'neat' becomes 'ox' (neat historically meant a cow or ox).
'house' becomes 'ho' (abbreviation for house).
'with outside' indicates putting letters inside (I've seen this in other clues).
'pool' becomes 'fund' (I've seen this before).
'ox'+'ho'='oxho'
'oxho' placed inside 'fund' is 'FOXHOUND'.
(Other definitions for foxhound that I've seen before include "5 [MANS BEST FRIEND]" , "hunter" , "Hunting dog" .)