The self-produced new single marks Glass' first release of 2021, following last year's "NIGHTMARES" song that appeared on the Sermon 4 Anniversary compilation.
"SUFFER AND SWALLOW" is also the first taster of her upcoming solo album, which is due for release later this year.
Glass' new single is accompanied by a stop-motion visual directed, produced and animated by Lucas David.
Discussing her debut solo album via Twitter in October last year, Glass wrote, "and YES I have a record coming soon. She is the culmination of years of literal blood sweat sobs screams and tears. She is amazing and she cant wait to meet you."
Her upcoming solo album will follow her 2017 self-titled EP.
