Organisers get vacuous actor to meet people working in park (9)

'organisers get vacuous actor to' is the definition.
I can't tell whether this definition defines the answer.

'people working in park' is the wordplay.
I cannot really see how this works, but
'people' could be 'rangers' (ranger is a kind of person) and 'rangers' is found in the answer.
The remaining letters 'ar' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

'meet' acts as a link.

Can you help me to learn more?