Appearing in 'Giant', a respected star (7)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
antares
'star' is the definition.
(Antares is an example)
'appearing in giant a respected' is the wordplay.
'appearing in' says the answer is hidden in the clue.
'ANTARES' can be found hidden inside 'giant a respected'.
(Other definitions for antares that I've seen before include "Star reddened" , "Red supergiant star in Scorpio; nae star (anag.)" , "RS [RED STAR]" , "Red supergiant star in Scorpius" , "brilliant point" .)