Trip in the corridor (7)
I believe the answer is:
passage
This clue is a triple definition!
'trip' is the first definition.
(thesaurus)
'in' is the second definition.
(thesaurus)
'the corridor' is the third definition.
(thesaurus)
(Other definitions for passage that I've seen before include "equestrian manoeuvre" , "Aisle" , "Transit - part of book etc" , "Piece of writing" , "Section of text; journey" .)