Decide how to finish comic book? (4,1,10)

I believe the answer is:

draw a conclusion

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'comic book?' is the definition.
Both the definition and answer are singular nouns.
Perhaps there's an association between them I don't understand?

'decide how to finish' is the wordplay.
'decide how' becomes 'drawa' (I can't justify this - if you can you should believe this answer much more).
'to finish' becomes 'conclusion' (synonyms).
'drawa'+'conclusion'='DRAW A CONCLUSION'

Can you help me to learn more?

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

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