### Clue: Very long word and polite address to man (Romeo's papa) by surrealist in hospital (14)
### Answer: SESQUIPEDALIAN 
 ### Explanation: Definition: Very long word
An envelope ('in') of ESQUIPE, which is ESQUIRE ('polite address to man') with the R replaced by P ('Romeo's papa', radio alphabet) plus DALI ('surrealist') in SAN ('hospital').