In Grammar, a Word for the Performer of a Verb

This page is the CodyCross answer for the clue below from Australia, Group 1002, Puzzle 1 (Queensland).

Question is: In Grammar, a Word for the Performer of a Verb

and the answer is: AGENTNOUN

Word Meaning:

AGENT NOUN — (grammar) A noun that denotes an agent (human or nonhuman) that performs the action denoted by the verb from which the noun is derived, such as "rider" derived from "to ride", or "cutter" derived from "to cut".

Definitions from Wiktionary.