Walk to entrance, we hear (4)
I believe the answer is:
gait
'walk' is the definition.
(I know that gait is a type of walk)
'entrance we hear' is the wordplay.
'entrance' becomes 'gate' (type of entrance).
'we hear' shows a homophone (sound like).
'gate' is a homophone of 'GAIT'.
'to' is the link.
(Other definitions for gait that I've seen before include "Way of walking (4)" , "Manner of walking or running" , "Style of walking" , "Bearing" , "Walk" .)