Lost away from land (2,3)
I believe the answer is:
at sea
I believe this is a double definition.
'lost' is the first definition.
(thesaurus)
'away from land' is the second definition.
(I've seen this before)
(Other definitions for at sea that I've seen before include "Totally disorganised" , "All bothered and bewildered" , "sent in junk?" , "floundering" , "Perplexed" .)