The clause most creators forget to include in their contracts:
A revision limit.
Without it, "one small tweak" can turn into five rounds of changes, a reshoot, and a brief that's completely different from what you originally agreed. The brand isn't necessarily being unreasonable — they just don't have a reason to stop.
Standard language: "Two rounds of minor revisions included. Additional revision rounds billed at [rate] per round."
That one sentence changes the entire dynamic of the approval process.