Announced a number have cleared out (8)
I believe the answer is:
'announced' is the definition.
(similar in meaning)
'a number have cleared out' is the wordplay.
'a number' becomes 'd' (D is an example).
'have' is a charade indicator (letters next to each other).
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'cleared' with letters rearranged gives 'eclared'.
(Other definitions for declared that I've seen before include "Avowed openly" , "Announced publicly" , "Stated emphatically" , "Made clearly known" , "Closed an innings" .)