### Clue: Charlotte, for instance, is extremely coy about exactly what's needed (4)
### Answer: CITY 
 ### Explanation: Definition: Charlotte, for instance
 **The 2 outermost letters of**(extremely) "coy " **containing**(about) IT(the desirable quality or ability;exactly what's needed, as in "she's got it; yes, baby, she's got it".
Answer: An example of which is Charlotte, a city in North Carolina, USA.