Try to contact young attendant (4)
I believe the answer is:
page
I believe this is a double definition.
'try to contact' is the first definition.
(I've seen this in another clue)
'young attendant' is the second definition.
(eg a royal page)
(Other definitions for page that I've seen before include "contribution to book?" , "Piece of paper for a young attendant" , "Leaf; call over PA system" , "Boy attendant; send out call for" , "Side" .)