Reviewer a layman initially on the danger list? (8)

I believe the answer is:

critical

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'reviewer a layman initially on the danger list?' is the definition.
I can't judge whether this definition defines the answer.

'reviewer a layman initially on' is the wordplay.
'reviewer' becomes 'critic' (I've seen this before).
'initially' indicates taking the first letters.
'on' is a charade indicator (letters next to each other).
The initial letter of 'layman' is 'l'.
'critic'+'a'+'l'='CRITICAL'

Can you help me to learn more?

(Other definitions for critical that I've seen before include "At crucial stage, or being disparaging" , "essential" , "Seriously ill" , "Looking for faults, or at important point" , "Decisively important" .)

I've seen this clue in The Times.

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