Not aerial (anag.) (9)
I believe the answer is:
rationale
(Other definitions for rationale that I've seen before include "Logical reason for action" , "This might account for" , "Philosophy" , "Logic, reasoning" , "Why regulate" .)
I believe the answer is:
rationale
(Other definitions for rationale that I've seen before include "Logical reason for action" , "This might account for" , "Philosophy" , "Logic, reasoning" , "Why regulate" .)