Play, as a guitar

STRUM

Think of the gentle, rhythmic motion you make with your fingers or a pick across the strings to produce sound.

Play, as a guitar" is a straightforward clue where the answer describes the action of moving your fingers across the strings. The word "strum" fits because it’s the common term for how you play a guitar by brushing or plucking the strings with a pick or your fingers. There’s no hidden wordplay here—it’s a direct definition clue where the answer matches the action described.