1: Went ahead and used the power button (7,2)
2: Scenery has to get down by starting 12-across (7,6)
3: You audibly ram partner (3)
4: Shepherd, at times, is more abrupt in tone (7)
6: Girl mostly into turning inside out - it's never ending! (11)
7: City that cowboys used to avoid (5)
9: Feeble deception overheard (5)
10: Nick shouts - and theres trouble brewing! (3,5,2,3)
12: Sent one page rewritten in military lingo (11)
16: Cut material had value (9)
19: Entertains crowds (5)
20: Aboard a ship is shipping magnate (7)
21: Flower, large one, set up outside (5)
25: Vet theatre opening 8-down (3)