• (n.) One who, or that which, elaborates.
E·lab'o·ra`tor noun One who, or that which, elaborates. 
elaborator 1. Someone who has a tendency to elaborate. 2. Anyone who constructs something with labor and minute attention to details. 3. A person who adds details, as to an account or idea. 4. Someone who clarifies the meaning of and discourses in a learned way, usually in writing.