Vainly, actor arranged to get a fortune-teller (11)
I believe the answer is:
clairvoyant
'a fortune-teller' is the definition.
(I've seen this before)
'vainly actor arranged' is the wordplay.
'arranged' is an anagram indicator (letters rearranged).
'vainly'+'actor'='vainlyactor'
'vainlyactor' is an anagram of 'CLAIRVOYANT'.
'to get' acts as a link.
(Other definitions for clairvoyant that I've seen before include "Madame Arcaty?" , "Fey" , "diviner" , "Psychic" , "Able to see the future" .)