Physician missed nothing in a large collection of dogma (9)

I believe the answer is:

doctrinal

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'physician missed nothing in a large collection of dogma' is the definition.
I can't tell whether this defines the answer.

'physician missed nothing in a large' is the wordplay.
'physician' becomes 'doc' (synonyms).
'missed nothing in' becomes 'trina' (I can't explain this - if you can you should give a lot more credence to this answer).
'a large' becomes 'L' (eg in clothes sizes).
'doc'+'trina'+'l'='DOCTRINAL'

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(Another definition for doctrinal that I've seen is " Relating to beliefs".)

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

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