Ensure it will make you rapacious (8)
I believe the answer is:
esurient
'rapacious' is the definition.
(synonyms)
'ensure it will make' is the wordplay.
'will make' is an anagram indicator.
'ensure'+'it'='ensureit'
'ensureit' anagrammed gives 'ESURIENT'.
'you' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for esurient that I've seen before include "could eat a horse" , "Hungry; retinues (anag.)" , "Hungry, greedy" , "Greedy; ensure it (anag.)" , "Rapacious" .)