1: Fork prong holds passion fruit (9)
2: Bobbed beneath in playful attempt to drown journalist. (6, 5)
3: This behaviour causes sin! (9)
4: A Hollywood star upset about paparazzi hub in crude social event (6,5)
5: Greek characters suggest dawn (3)
6: Its strange to go back to a novice for a wall decoration (5)
7: The end, you say? On the contrary! (3)
8: Mostly, you drink with mystic (5; var.)
12: Toff aimed to do himself proud. (11)
13: Left with pal carrying new gold case (11)
16: Prohibit a clone performing in past Olympic Games (9)
17: Attentive old bachelor, one who waits on others (9)
20: This is always resplendent, adorning heads (5)
21: Full house often enough to secure this young pet (5)
24: Take Chair in university (3)
25: Number One in facetiousness (3)