Wildly paces the room (5)
I believe the answer is:
space
'room' is the definition.
(I've seen this in another clue)
'wildly paces' is the wordplay.
'wildly' indicates an anagram.
'paces' with letters rearranged gives 'SPACE'.
'the' is the link.
(Other definitions for space that I've seen before include "Free area" , "Interstellar vacuum" , "Cosmos" , "Expanse" , "Room for capes" .)