Crossword Genius

Liberals on lookout for a hero in the Great War (6)

Ross

I believe the answer is:

cavell

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'a hero in the great war' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'liberals on lookout' is the wordplay.
'liberals' becomes 'll' (a political abbreviation for liberal written twice).
'on' means one lot of letters go next to another.
'lookout' becomes 'cave' (I can't justify this - if you can you should believe this answer much more).
'll' after 'cave' is 'CAVELL'.

'for' acts as a link.

Can you help me to learn more?

(Other definitions for cavell that I've seen before include "I was shot by the Germans" , "Edith --, nurse executed in World War 1" , "Edith, World War I heroine" , "Nurse Edith ...... was heroine of WW1" , "WWI nurse executed by Germans" .)

I've seen this clue in The Times.
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