Crossword Genius

Inane, is awfully stupid (7)

Ross

I believe the answer is:

asinine

'stupid' is the definition.
(thesaurus)

'inane is awfully' is the wordplay.
'awfully' indicates an anagram.
'inane'+'is'='inaneis'
'inaneis' is an anagram of 'ASININE'.

(Other definitions for asinine that I've seen before include "Senseless" , "Silly like a donkey" , "Extremely stupid or foolish" , "Stupid (as a donkey?)" , "Really silly, ridiculous" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app