### Clue: People bothered about language in Mass — those devoted to the Virgin (11)
### Answer: GRAMMARIANS 
 ### Explanation: Definition: People bothered about language
  GRAM(measure of *mass* in the metric system) MARIANS(persons *devoted to the Virgin* Mary, mother of Christ).
Defn:  Alas, such *people* who *bother about* the correct usage of *language* and its components, are becoming fewer, and those who do, are being unheeded more and more.