12 across
Old
Man
Time’s
desire
(5)
Old Man Time’s desire (5)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
The definition is desire, since to covet something means to want it badly. Old Man gives you COVE (good old-fashioned slang for a fellow), and Time tacks on T at the end to finish it off.