Paved area by house is in occupation (5)
I believe the answer is:
patio
'paved area by house' is the definition.
(I've seen this before)
'in occupation' is the wordplay.
'in' indicates the answer is hidden within the clue.
'PATIO' can be found hidden inside 'occupation'.
'is' is the link.
(Other definitions for patio that I've seen before include "Paved eating area adjoining house" , "Inner courtyard" , "Barbecue location?" , "Garden terrace" , "Paved outdoor area" .)