Bottle Rita Fabin smashed in conflict of 1940 (6,2,7)

I believe the answer is:

battle of britain

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

'conflict of 1940' is the definition.
I can't judge whether this defines the answer.

'bottle rita fabin smashed' is the wordplay.
'smashed' indicates an anagram.
'bottle'+'rita'+'fabin'='bottleritafabin'
'bottleritafabin' with letters rearranged gives 'BATTLE OF BRITAIN'.

'in' is the link.

Can you help me to learn more?

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

Want a hint initially instead of a full solution? Install my app