Avoid endless beer during that pandemic (9)
I believe the answer is:
prevalent
'that pandemic' is the definition.
(thesaurus)
'avoid endless beer during' is the wordplay.
'avoid' becomes 'prevent'.
'endless' means to remove the last letter.
'beer' becomes 'ale' (I've seen this before).
'during' indicates putting letters inside.
'ale' with its last letter removed is 'al'.
'prevent' going around 'al' is 'PREVALENT'.
(Other definitions for prevalent that I've seen before include "Common" , "Ruling" , "powerful" , "Widely accepted" , "Widespread - current" .)