Leave flower with a big ape (7)

I believe the answer is:

gorilla

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'big ape' is the definition.
(I've seen this in another clue)

'leave flower with a' is the wordplay.
'leave' becomes 'go' (to go is to depart or leave).
'flower with' becomes 'rill' (I am not sure about this - if you are sure you should believe this answer much more).
'go'+'rill'+'a'='GORILLA'

Can you help me to learn more?

(Other definitions for gorilla that I've seen before include "The biggest ape" , "Endangered anthropoid" , "Powerful great ape" , "Largest living primate" , "Primate - sturdily-built aggressive man" .)

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