### Clue: Bugs British character — and the rest — American sent back (8)
### Answer: BACTERIA 
 ### Explanation: Definition: Bugs
 B(abbrev. for "British") + **reversal of**(… sent back)[AIR(character/an impression of quality) **plus**(and) ETC(abbrev. for "et cetera"/the rest) + A(abbrev. for "American") ].