Born horny? This might calm one down (6)
I believe the answer is:
brandy
'this might calm one down' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'born horny?' is the wordplay.
'born' becomes 'b' (abbreviation next to the year of someone's birth).
'horny?' becomes 'randy' (synonyms).
'b'+'randy'='BRANDY'
Can you help me to learn more?
(Other definitions for brandy that I've seen before include "Cognac, calvados, armagnac etc" , "- - -snap" , "& 24 Mincepie accompaniment" , "Cognac, perhaps" , "warmer?" .)