Air out by drafting announcement of death (8)
I believe the answer is:
obituary
'announcement of death' is the definition.
'obituary' can be an answer for 'announcement' (obituary is a kind of announcement). I am not sure about the 'of death' bit.
'air out by drafting' is the wordplay.
'air out by' anagrams to 'OBITUARY'.
However, I'm not sure how this is indicated.
Can you help me to learn more?
(Other definitions for obituary that I've seen before include "Brief newspaper feature on death of prominent person" , "Brief tribute written to someone who has died" , "Brief newspaper account of deceased person's life" , "Account of late person" , "Brief published biography of recently deceased person" .)