Crossword Genius

Caught taking type of acid – I'm involved bringing about resolution (9)

Ross

I believe the answer is:

climactic

I'm a little stuck... Click here to teach me more about this clue!

'involved bringing about resolution' is the definition.
I can't tell whether this defines the answer.

'caught taking type of acid i'm' is the wordplay.
I cannot really see how this works, but
'caught' could be 'ct' and 'ct' is found in the answer.
'i'm' could be 'i' (I've seen this in other clues) and 'i' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for climactic that I've seen before include "Making an exciting end" , "Coming to a high point" , "Coming to an exciting finish" , "reaching a culmination" , "approaching a high" .)

I've seen this clue in The Guardian.
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