Solution: Pilot control - NYT Crossword

I assumed that “Pilot control?” referred to some sort of aeronautics, despite the punctuation, but still for some reason settled firmly on “gas cap.” That led to the now-inconceivable “canna” at 4D, for a “Quaint retort” (thinking of the Scottish “can not,” I guess? My gosh), and then “gaga” at 19A, “Glued to something.” Disaster. Once I’d unraveled it all this clue was still my last solve — I thought GAS TAP sounded made up. It’s actually in reference to a pilot light, on a stove, which relies on the gas line (or “tap”) to boil or simmer.