Shows one's appreciation to a minister at prayer service (8)

I believe the answer is:

applauds

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

'shows' is the definition.
The definition and answer can be both to do with communicating as well as being verbs in their -s form.
Perhaps there's a link between them I don't understand?

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Another definition for applauds that I've seen is " Claps hands".)

I've seen this clue in the Irish Times (Crosaire) and the Irish Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.