3d: athlete of stamina (8,6): m?a????? ??n?e?
14d: one participating in underwater sport (5,5): ????? diver
21d: support oneself with difficulty and effort (3,3): ?k? o?t
12a: unpaid sportspeople (8): ?e???u?l
19a: a central bank calculates interest using this(4,4): ??t? ????
20a: sporting confidence, spirit, (6): ?o?a?e