Don't go to bed — party wildly with us right away! (4,2)
I believe the answer is:
stay up
'party wildly with us right away' is the definition.
I can't judge whether this definition defines the answer.
'don't go to bed' is the wordplay.
'don't go' becomes 'stay' (I've seen this before).
'to' is a charade indicator (letters next to each other).
'bed' becomes 'up' (I can't explain this - if you can you should believe this answer much more).
'stay'+'up'='STAY UP'
Can you help me to learn more?
(Other definitions for stay up that I've seen before include "Keep late hours; avoid relegation" , "Don't go to bed - don't be relegated" , "Decide not to retire" , "Don't retire" , "postpone retirement" .)