Races around Georgia - it makes you cry (4,3)
I believe the answer is:
tear gas
'it makes you cry' is the definition.
The definition suggests a singular noun which matches the answer.
'races around georgia' is the wordplay.
'races' becomes 'tears' (tearing is a kind of racing).
'around' indicates putting letters inside.
'georgia' becomes 'GA' (abbreviation for the US state).
'tears' enclosing 'ga' is 'TEAR-GAS'.
Can you help me to learn more?
(Other definitions for tear gas that I've seen before include "Riot control substance" , "this may stop a riot" , "Discharge sprayed by riot police" , "Riot control weapon" , "Crowd disperser" .)