Out of the way of hyenas, ideally (5)
I believe the answer is:
aside
'out of the way' is the definition.
(synonyms)
'of hyenas ideally' is the wordplay.
'of' indicates a hidden word.
'ASIDE' is hidden within 'hyenas ideally'.
(Other definitions for aside that I've seen before include "Actor's remark for the audience alone" , "(Pushed) out of the way" , "In reserve; actor's remark to audience" , "Quiet words spoken" , "Line spoken to theatre audience" .)