At sea (6)
'at sea' is the definition.
(at sea can mean in lost or in confusion)
This is the entire clue.
(Other definitions for lost that I've seen before include "Missing" , "TV series!" , "See 10" , "TV show" , "confused" .)
(Other definitions for saps that I've seen before include "Enervates in spas" , "Weakens, undermines" , "mugs" , "Drains energy from" , "Coshes" .)
'at sea' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for afloat that I've seen before include "On board at sea, on ship" , "Aboard ship" , "Still solvent" , "On board a ship or boat" , "At sea - in circulation" .)