A papal edict? Nonsense (4)

I believe the answer is:

bull

This clue is a double definition.

'a papal edict?' is the first definition.
(I've seen this before)

'nonsense' is the second definition.
(thesaurus)

(Other definitions for bull that I've seen before include "See 20 down" , "Animal; 23 across" , "Official papal edict" , "Papal proclamation" , "Bovine animal" .)

I've seen this clue in The Telegraph.

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