Cold potato appearing with frequency (5)
I believe the answer is:
aloof
'cold' is the definition.
(both can mean distant)
'potato appearing with frequency' is the wordplay.
'potato' becomes 'aloo' (term for potato in Indian cuisine).
'appearing with' means one lot of letters go next to another.
'frequency' becomes 'F' (abbreviation e.g. FM radio).
'aloo'+'f'='ALOOF'
(Other definitions for aloof that I've seen before include "Snooty" , "A fool being cool and remote" , "Standoffish like a fool" , "Withdrawn, distant" , "Distant, uninvolved" .)