Act it out without a word (5)

I believe the answer is:

tacit

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'without a word' is the definition.
I can't tell whether this definition defines the answer.

'act it out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'act'+'it'='actit'
'actit' is an anagram of 'TACIT'.

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(Other definitions for tacit that I've seen before include "Understood without being directly expressed" , "without speaking" , "Understood, implicit" , "Implied, unstated" , "Understood, not spoken or played" .)

I've seen this clue in the Evening Standard.

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