Moves carefully (5)
I believe the answer is:
eases
'moves carefully' is the definition.
('ease' can be a synonym of 'move carefully')
This is the entire clue.
(Other definitions for eases that I've seen before include "Makes more comfortable" , "Moves carefully" , "Assuages or slackens" , "Relieves, lightens" , "Alleviates, relieves" .)