Flee, get away (6)
I believe the answer is:
escape
This clue is a double definition.
'flee' is the first definition.
(I know that flee is a kind of escape)
'get away' is the second definition.
(synonyms)
(Other definitions for escape that I've seen before include "Decamp" , "Elude, dodge" , "Manage to avoid" , "A key at top, on left" , "Get away from captivity" .)