Crops scattered alongside one old house (7)
I believe the answer is:
scorpio
'house' is the definition.
(Scorpio is an example)
'crops scattered alongside one old' is the wordplay.
'scattered alongside' indicates anagramming the letters.
'one' becomes 'i' (Roman numeral).
'old' becomes 'o' (abbreviation as in OT - Old Testament).
'crops' mixed up with 'i' gives 'scorpi'.
'scorpi'+'o'='SCORPIO'
(Other definitions for scorpio that I've seen before include "Stinger" , "star group" , "Person born between 23 October and 22 November?" , "A heavenly body" , "Sign of stinging arachnid" .)