Unable to get off boat trailer suitable for all in Florida (7)
I believe the answer is:
wakeful
'unable to get off' is the definition.
I can't tell whether this defines the answer.
'boat trailer suitable for all in florida' is the wordplay.
'boat trailer' becomes 'wake' (I've seen this in another clue).
'suitable for all' becomes 'u' (short for Universal film certificate).
'in' indicates putting letters inside.
'florida' becomes 'fl' (abbreviation).
'u' put inside 'fl' is 'ful'.
'wake'+'ful'='WAKEFUL'
Can you help me to learn more?
(Other definitions for wakeful that I've seen before include "Not getting off" , "Unable to sleep" , "Not sleepy" , "Alert, vigilant" .)