### Clue: Group of females two men insist gets changed in front of truck (6,9)
### Answer: WOMEN’S INSTITUTE 
 ### Explanation: Definition: Group of females
  **Anagram of**(gets changed) TWO MEN INSIST **placed before**(in front of) UTE(short for a utility vehicle,truck).
Answer:  Often referred to by its abbrev., the WI, the largest voluntary women's organisation in the UK, providing members with educational opportunities, the chance to take part in wide variety of activities, and to campaign for women's welfare.