He waits it out, with no judgement but an admittedly slightly confused expression. That Clint is having a hard time spelling it out is clear, but what Clint wants isn't.

Until Clint shows him.

"With pleasure." No amusement, no mocking, no judgement. Some (and more than a little) relief. That he understands and that Clint asked. He adjusts his position to be able to get into a position where he can reach support Clint's position and still reach his hair, and does that.

With pleasure.

Slow, steady, and letting his nails drag just a little against Clint's scalp. Focuses on the rhythm and the way it feels to him, too.