### Clue: Boatman's people, say, could be grand (3)
### Answer: CRU 
 ### Explanation: Definition: could be grand
 **Homophone of**(…, say) "crew"(of boatmen;boatman's people, cryptically).
Defn: A vineyard producing superior wine, the latter sometimes classified by the government as;could be Grand Cru (a Great Growth), or Premier Cru(a First Growth).