Wild time in Florida (5)
I believe the answer is:
feral
'wild' is the definition.
('feral' can be similar in meaning to 'wild')
'time in florida' is the wordplay.
'time' becomes 'era' (I've seen this before).
'in' means one lot of letters goes inside another.
'florida' becomes 'fl'.
'era' placed into 'fl' is 'FERAL'.
(Other definitions for feral that I've seen before include "Escaped-into-wild (animal)" , "Wild and menacing" , "'Savage, wild (5)'" , "Flare up, being fierce" , "Wild, untamed" .)