Not anchored (6)
I believe the answer is:
adrift
'not anchored' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for adrift that I've seen before include "like Mary Celeste?" , "Unanchored - lost" , "Disoriented" , "not settled" , "'Directionless, floating freely (6)'" .)