Sign one with pride (4)
I believe the answer is:
lion
This clue is a double definition.
'sign' is the first definition.
(star sign Leo the Lion)
'one with pride' is the second definition.
(I've seen this in other clues)
(Other definitions for lion that I've seen before include "Large predatory feline" , "Maned beast" , "British RU cap" , "Touring rugby player" , "Sought after celebrity (showing great strength and courage?)" .)