1: Whistles for tarts carrying pitcher (5)
4: See one store walled by brick, mostly (9)
8: Tutus can serve to conceal Donatello, Leonardo, Michelangelo, and Raphael, say (7)
9: Leon's accepting prohibition from country (7)
10: Sheep to start wallowing in ease (3)
11: Mary-Jane crochets her Pop a jumper (11)
13: Beauty held a label up as being the merest trifle (9)
14: Youngster giving wounded first aid (5)
16: Anger doctor internalizes is more serious (5)
17: Violently storming while on the high seas (9)
19: Sound practical perception is a normal feeling (11)
21: Right, turn right to play with robot (3)
22: One true turning on the way (2,5)
23: Choose to return alternative indicator of power (7)
24: Working up here? Not in the next episode (9)
25: Small change comes back as recurring fluctuations (5)