Actor, this person featuring in 'The Bridge' (8)
I believe the answer is:
thespian
'actor' is the definition.
('thespian' can be a synonym of 'actor')
'this person featuring in the bridge' is the wordplay.
'this person' becomes 'i'.
'featuring in' means one lot of letters goes inside another.
'bridge' becomes 'span' ('span' can be a synonym of 'bridge').
'the'+'span'='thespan'
'i' placed into 'thespan' is 'THESPIAN'.
(Other definitions for thespian that I've seen before include "person in the acting business" , "Actor - neat hips (anag)" , "Stage-player" , "Player" , "Actor; relating to drama" .)