False swearing according to panel (7)
I believe the answer is:
perjury
'false swearing' is the definition.
(thesaurus)
'according to panel' is the wordplay.
'according to' becomes 'per' (I've seen this before).
'panel' becomes 'jury' ('jury' can be a synonym of 'panel').
'per'+'jury'='PERJURY'
(Other definitions for perjury that I've seen before include "Telling lies in court under oath" , "Lying in court" , "The telling of a lie under oath" , "False witness" , "False swearing" .)