What emails pass through Rebecca? Spy found out (10)
I believe the answer is:
cyberspace
'what emails pass' is the definition.
I can't tell whether this definition defines the answer.
'rebecca? spy found out' is the wordplay.
'found out' indicates an anagram (discovered out of the normal letter order).
'rebecca'+'spy'='rebeccaspy'
'rebeccaspy' anagrammed gives 'CYBERSPACE'.
'through' is the link.
Can you help me to learn more?
(Other definitions for cyberspace that I've seen before include "Notional environment for all computer networks" , "whole virtual environment" , "Virtually real environment" , "Computerised environment" , "Modern concept" .)