Reasonably straightforward puzzle, I found. Solving time: 17 mins
Will concentrate on a few of what seemed the trickier clues, happy to explain others if asked.
ACROSS
24 THE E MP IRE Refers to the film “The Empire Strikes Back” You = thee MP = Mounted Police (ie on horseback) ire = anger
26 CRANNIES cf grannies
DOWN
2 DI (A PA SO) N Foundation-stop of an organ din = dreadful noise
7 (l)ENDING
8 ALL THE KING’S MEN ref Humpty Dumpty nursery rhyme shell = eggshell
15 MILL(IN)ER Sienna Miller, actress
21 AN (GEL) A ‘Ana’ more commonly seen in advanced crosswords