Space where Othello, for example, returned on stage (7)
I believe the answer is:
legroom
'space' is the definition.
(I've seen this before)
'othello for example returned on stage' is the wordplay.
'othello for example' becomes 'moor' (Shakespeare's Othello is a Moor).
'returned' shows that the letters should be reversed in order.
'on' means one lot of letters go next to another.
'stage' becomes 'leg' (a leg is a stage of a competition).
'moor' backwards is 'room'.
'room' after 'leg' is 'LEGROOM'.
'where' is the link.
(Other definitions for legroom that I've seen before include "Space to stretch for seated person" , "Space between seat rows" , "(Seated) person's space for feet" , "Space needed to avoid cramped position" , "Space to stretch out when sitting" .)