Attention-seeker seen in Bishop's Stortford (4)
I believe the answer is:
psst
'attention-seeker' is the definition.
(I've seen this before)
'in bishop's stortford' is the wordplay.
'in' indicates a hidden word.
'PSST' can be found hidden inside 'bishops stortford'.
'seen' acts as a link.
(Other definitions for psst that I've seen before include "that attracts attention" , "(Whispered) may I have your attention?" , "Quiet call for attention" , "Beckoning sound" , "Interjection to draw attention" .)