Eg, chair or stool (4)
I believe the answer is:
seat
This clue is a double definition.
'eg chair' is the first definition.
(I know that chair is a type of seat)
'stool' is the second definition.
(I know that stool can be written as seat)
(Other definitions for seat that I've seen before include "Constituency; location" , "MP's place in parliament" , "Take one and sit" , "pew?" , "Chair - bottom" .)