State of Florida holidaymakers? (5)
I believe the answer is:
idaho
'state' is the definition.
(US state)
'of florida holidaymakers?' is the wordplay.
'of' indicates the answer is hidden within the clue.
'IDAHO' is hidden within 'florida holidaymakers'.
(Other definitions for idaho that I've seen before include "part of US near Washington" , "American state, capital Boise (5)" , "silver-mining state" , "US state in the Rocky Mountains" , "Northern US state" .)