1) Advice to the lovelorn 2) Become happier 3) Become joyful 4) Come out of the blue 5) Encouraging words 6) Happify 7) Jazz album by American artist 8) Make glad Found on https://www.crosswordclues.com/clue/cheer-up
jolly upverb cause (somebody) to feel happier or more cheerful; `She tried to cheer up the disappointed child when he failed to win the spelling bee` Found on https://www.encyclo.co.uk/local/20974