Number that ingested drug reportedly (6)
I believe the answer is:
eighty
'number that ingested drug reportedly' is the definition.
'eighty' can be an answer for 'number' (eighty is a kind of number). I am unsure of the remainder of the definition.
'number that ingested drug reportedly' is the wordplay.
'number' becomes 'eight' (eight is a kind of whole number).
'that ingested drug reportedly' becomes 'y' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'eight'+'y'='EIGHTY'
Can you help me to learn more?
(Other definitions for eighty that I've seen before include "Four score" , "score less than a hundred" , "Northern county (abbr.)" , "XXC" , "Cardinal" .)