Idiotically lie: “Debs? They are things that can be eaten” (7)
I believe the answer is:
edibles
'they are things that can be eaten' is the definition.
The definition suggests an adverb but the answer is not.
'idiotically lie debs?' is the wordplay.
'idiotically' is an anagram indicator (I've seen this in other clues).
'lie'+'debs'='liedebs'
'liedebs' with letters rearranged gives 'EDIBLES'.
Can you help me to learn more?
(Other definitions for edibles that I've seen before include "Things fit to be eaten" , "Food" , "Things fit to eat" .)