Spookery page one is circulating (9)
I believe the answer is:
espionage
'spookery' is the definition.
(spook can mean spy)
'page one is circulating' is the wordplay.
'circulating' indicates anagramming the letters.
'page'+'one'+'is'='pageoneis'
'pageoneis' is an anagram of 'ESPIONAGE'.
(Other definitions for espionage that I've seen before include "intelligence" , "Practice of spying" , "hush-hush work" , "007's game" , "seeking information" .)