Greek god’s verbal plea for support? (7)

I believe the answer is:

bacchus

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'greek god's' is the definition.
'bacchus' can be an answer for 'god's' (Bacchus is an example). I'm not certain of the 'greek' bit.

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for bacchus that I've seen before include "Roman god of wine and revelry" , "Greek god of drink, also called Dionysus" , "Roman god of drink and revelry" , "Divinity" , "Greek god of boozing" .)

I've seen this clue in The Times.

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