Willing supporters organising oil action? (9)

I believe the answer is:

coalition

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'willing supporters organising oil action?' is the definition.
I can't judge whether this defines the answer.

'organising oil action?' is the wordplay.
'organising' indicates anagramming the letters.
'oil'+'action'='oilaction'
'oilaction' is an anagram of 'COALITION'.

Can you help me to learn more?

(Other definitions for coalition that I've seen before include "Temporary alliance" , "form of government" , "Alliance of parties" .)

I've seen this clue in The Sun.

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