Is one page providing material for spying? (9)
I believe the answer is:
espionage
'material for spying?' is the definition.
'espionage' can be an answer for 'spying?' (espionage is a kind of spying). I am unsure of the 'material for' bit.
'is one page providing' is the wordplay.
'providing' is an anagram indicator.
'is'+'one'+'page'='isonepage'
'isonepage' is an anagram of 'ESPIONAGE'.
Can you help me to learn more?
(Other definitions for espionage that I've seen before include "undercover work" , "secret work" , "agent's job" , "hush-hush work" , "seeking information" .)