Clue: A boring dim person interested in being a scientist (15)
Answer: PALAEONTOLIGIST
Explanation: Definition:  a scientist 
**A** *boring* **PALE** ("dim") + **ONTOLOGIST **("person interested in being") 
*PALAEONTOLIGIST does not appear in any of my dictionaries, nor in any online dictionary I can find. If you google "palaeontoligist", you will get results, but nearly all of them will then refer to palaeontol**O**gists. I think this is an error, and unless anyone can convince me otherwise, this should have been spotted by the editor.