### Clue: Polo team starts in a real mess without wings (7)
### Answer: APTERAL 
 ### Explanation: Definition: without wings
  **First letters respectively of**(starts) "Polo ","team " **contained in**(in) **anagram of**(mess) [ A REAL ].
Answer: Descriptive of insects without wings. 22 Singular science of $$medicine$$ (6) 
**PHYSIC** : Cryptic defn: The science of "physics" which name may be whimsically considered a plural noun, giving "physic" as a singular.
Answer: A medicine or drug.