Cool guy on the short list? (3)
I believe the answer is:
cat
'cool guy' is the definition.
(slang term for a cool guy)
'on the short list?' is the wordplay.
'on' says to put letters next to each other.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'short list?' becomes 'ca' (I can't explain this - if you can you should believe this answer much more).
't' after 'ca' is 'CAT'.
Can you help me to learn more?
(Other definitions for cat that I've seen before include "Tabby" , "eg Leopard" , "Common pet" , "An old whip with nine tails" , "Grimalkin" .)