August birth sign (3)
I believe the answer is:
leo
'august birth sign' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for leo that I've seen before include "Name taken by 13 popes, the last dying in 1903 aged 93" , "Lion constellation" , "Cancer, ___, Virgo" , "of pride" , "MGM's lion" .)