Cheat on Georgia at dance (5)
I believe the answer is:
conga
'dance' is the definition.
(conga is a type of dance)
'cheat on georgia' is the wordplay.
'cheat' becomes 'con' (conning is a kind of cheating).
'on' says to put letters next to each other (in a down clue, letters appear on others).
'georgia' becomes 'ga' (abbreviation).
'con'+'ga'='CONGA'
'at' is the link.
(Other definitions for conga that I've seen before include "Latin American dance performed in single file" , "What gets line moving rhythmically" , "Chain dance" , "Snaking Latin American dance" , "Long-line dance" .)