1) Bagpipe sound 2) Make a shrill, wailing sound 3) Play a bagpipe 4) Play the bagpipes 5) Sound 6) Sound of bagpipes 7) The sound of a bagpipe Found on https://www.crosswordclues.com/clue/skirl
Skirl transitive verb & i. [ Of Scand. origin, and originally the same word as English shrill .] To utter in a shrill tone; to scream. [ Prov. Eng. & Scot.] Found on http://www.encyclo.co.uk/webster/S/115