### Clue: A Dubliner's about to take in dress for tiny bodies (9)
### Answer: ANAEROBES 
 ### Explanation: Definition: tiny bodies
 A + **reversal of**(…'s about) SEAN(a common name for a Dubliner or Irishman)} **containing**(to take in) ROBE(dress, in particular, an elaborate gown).
Defn: …/organisms.