Senora drunkenly offers explanation (6)
I believe the answer is:
reason
'explanation' is the definition.
(reason is a kind of explanation)
'senora drunkenly' is the wordplay.
'drunkenly' is an anagram indicator.
'senora' anagrammed gives 'REASON'.
'offers' is the link.
(Other definitions for reason that I've seen before include "brain operations" , "Cause - logic" , "Power of thought" , "Logic of senora" , "Motive or right thinking" .)