Answer:

modeler

Answer	Crossword Clue
MODELER	One attending to little things
MODELER	Builder of tiny cities
MODELER	One working with clay

MODELER	Worker with clay
MODELER	Toy-train hobbyist
MODELER	Sculptor.
MODELER	Sculptor of sorts.
MODELER	Hobbyist with toy trains, e.g.
MODELER	Worker in clay, say