### Clue: Tight clothing hides middle of bum and 'bits' (8)
### Answer: SKINSUIT 
 ### Explanation: Definition: Tight clothing
 SKINS(hides of animals, especially when tanned or dressed) + **the central letters, respectively, of**(middle of) [ "bum" **plus**(and) "bits"].**
Astronauts, too, wear them: