Mind-reading (9)
I believe the answer is:
telepathy
'mind-reading' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for telepathy that I've seen before include "Apparent communication between two minds" , "ESP" , "special form of communication" , "Extrasensory communication" , "Thought transference - they leapt (anag)" .)