Loose from moorings (6)
I believe the answer is:
adrift
'loose from moorings' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for adrift that I've seen before include "Rudderless, astray" , "without guidance?" , "Undirected" , "Floating freely, not moored" , "'Floating without direction, not tied up (6)'" .)