Complex sentence: The song is a love ballad, breaking with the themes of most of Clark's major release work to date who had once said that she was "not known for writing love songs" in an interview with Oyster.
Split into simpler sentences: The song is a love ballad, breaking with the themes of most of Clark's major release work to date. Previously Clark had declared she was "not known for writing love songs" in an interview with Oyster.