Crossword Genius

Rooster ends grasshoppers, etc (9)

Ross

I believe the answer is:

cocktails

I'm a little stuck... Click here to teach me more about this clue!

'grasshoppers etc' is the definition.
I can't tell whether this defines the answer.

'rooster ends' is the wordplay.
'rooster' becomes 'cock' (synonyms).
'ends' becomes 'tails' (tail is a kind of end).
'cock'+'tails'='COCKTAILS'

Can you help me to learn more?

(Another definition for cocktails that I've seen is " Mixed drinks".)

I've seen this clue in the Sydney Morning Herald.
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