Stagnant (5)
'stagnant' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stale that I've seen before include "piss" , "No longer fresh" , "Least (anag.)" , "no longer bearing interest?" , "Boring" .)
'stagnant' is the definition.
(I know that stagnant can be written as moribund)
This is the entire clue.
(Other definitions for moribund that I've seen before include "At death's door" , "About to die" , "Decaying" , "on the way out" , "Not growing or changing" .)