Made a decision (5)
I believe the answer is:
opted
'made a decision' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for opted that I've seen before include "Depot (anag.)" , "Selected from depot" , "Decided as in 10 Across" , "Plumped (for)" , "Chosen - elected" .)