Spying (9)
I believe the answer is:
espionage
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">spying</span>' is the definition.<br/ ><span class="explanation-format__explanation">(espionage is a kind of spying)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for espionage that I've seen before include "intelligence" , "007's game" , "agent's job" , "secret work" , "undercover work" .)