When a vocab word is a single kanji with no okurigana, it takes the kun'yomi reading. You didn't learn this one yet, so here's a mnemonic to help you remember:

When the go-between gets back and is about to tell you everything the other group said, it takes him two takes (つて) to get it all right. The other group had a lot to say and he had trouble getting it all on the first take, but he totally nailed it on the second.

Little side note: this word is actually more common in hiragana, written as つて. Still, you might see it in kanji too, and it's good if you can read it!