Enthuse about Vera (4)
I believe the answer is:
rave
'enthuse' is the definition.
(I've seen this in another clue)
'about vera' is the wordplay.
'about' indicates an anagram.
'vera' is an anagram of 'RAVE'.
(Other definitions for rave that I've seen before include "Talk wildly in modern youth dance" , "Rant - noisy, all-night party" , "Illegal party; talk madly" , "Rapturous" , "Party with electronic dance music - be wild" .)