Rising star is a term used to describe someone who has recently become successful or popular in their field. The crossword solutions for this term are SUN (3 letters), NOVA (4 letters), COMER (5 letters), and PHENOM (6 letters). SUN is an astronomical body that emits light and heat, while NOVA is a star that suddenly increases in brightness. COMER is someone who has recently arrived on the scene, and PHENOM is an extraordinary or remarkable person. All of these terms can be used to describe a rising star.