Entry ticket I have acted upon (7)

I believe the answer is:

passive

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'acted upon' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives sometimes define each other.

'entry ticket i have' is the wordplay.
'entry ticket' becomes 'pass' (I've seen this in another clue).
'i have' becomes 'I've' (contraction of 'I have').
'pass'+'ive'='PASSIVE'

Can you help me to learn more?

(Other definitions for passive that I've seen before include "Not resisting" , "Inert; not acting" , "sort of voice" , "Opposite of active" , "Slow to react" .)

I've seen this clue in The Irish News.

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