3: Then, one crisis ends after call is for healthy exercises (13)
4: Infamous Ms. Spelling: 'Nothing's within reason!' (9)
5: Short line in letter back-fires (5)
6: Neil Armstrong initially brought back extraterrestrial (5)
7: A Hollywood star upset about paparazzi hub in crude social event (6,5)
10: Rise as in throw, perhaps, showing fitness to fly (13)
11: Mary-Jane crochets her Pop a jumper (11)
12: Icy turning, for example, on top (5)
14: Show sadness when fruit gets cut out (4,1,4)
16: Language making a comeback in modern Italy (5)
20: After arrival, pair of ghosts making noise of frustration (5)
21: Statues which aren't solid? (5)
24: Number One in facetiousness (3)