put in a word
put in a good word (for one)
To recommend one (for something); to say complimentary things about one, their performance, or their capabilities. (Can also be structured "put a good word in (for someone).") I heard you're applying for that IT job here. I'll be sure to put in a good word for you. Her former boss put in a good word for her, but we were a little disappointed in her application.