August report largely devoid of content (7)
I believe the answer is:
stately
'august' is the definition.
(august can mean stately or noble)
'report largely devoid of content' is the wordplay.
'report' becomes 'state'.
'devoid of content' means to remove the middle letters (the content of the word is emptied out).
'largely' with its middle taken out is 'ly'.
'state'+'ly'='STATELY'
(Other definitions for stately that I've seen before include "Majestically" , "Imposing, grand" , "August" , "Dignified and impressive" , "Grand, dignified" .)