Wiktionary
drop a hint
vb. (context idiomatic English) To reveal a clue or hint about something.
Usage examples of "drop a hint".
He has only to drop a hint to Wallie that we are trying to separate him from his true friends and keep him to ourselves—.
She'd never drop a hint that might draw his attention toward a different machination of hers.
You know, Blanche, next time I see Walt Rae, I think Ill just drop a hint that I write the stuff.
And some day, I thought, a chirpsithtra would drop a hint that would make me a fortune akin to the first.
Should he rescue his wares and save his investment, or drop a hint as to where the tuck might be found and settle an old score once and for all?