Not at home if deal is off (6)
I believe the answer is:
afield
'not at home' is the definition.
I can't tell whether this definition defines the answer.
'if deal is off' is the wordplay.
'is off' indicates an anagram.
'if'+'deal'='ifdeal'
'ifdeal' is an anagram of 'AFIELD'.
Can you help me to learn more?
(Other definitions for afield that I've seen before include "At a distance ("far ____")" , "away from home" .)