Martin would never quite break the rule (6)

I believe the answer is:

luther

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'martin would never quite' is the definition.
I can't tell whether this defines the answer.

'break the rule' is the wordplay.
'break' becomes 'lu' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'rule' becomes 'r' (legal abbreviation).
'lu'+'the'+'r'='LUTHER'

Can you help me to learn more?

(Other definitions for luther that I've seen before include "Martin . . . . . ., founder of Protestant Reformation in Germany" , "Martin --, religious reformer" , "German theologian who led the Reformation, d. 1546" , "Ger. Protestant Reformation leader" , "Martin -, Reformation theologian" .)

I've seen this clue in the Evening Standard.

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