### Clue: Refuse to be thrown by her line dance starting late (9)
### Answer: LITTERBUG 
 ### Explanation: Definition: Refuse to be thrown by her
 L(abbrev. for "line") + "jitterbug"(a fast dance from the 1940s) **minus its 1st letter**(starting late).
Defn: The "her" in the clue/one who throws litter indiscriminately.