Information from an intelligence officer (3)
I believe the answer is:
gen
'information' is the definition.
(gen can informally mean information)
'from an intelligence officer' is the wordplay.
'from' indicates the answer is hidden within the clue.
'GEN' is hidden in the letters of 'intelligence officer'.
(Other definitions for gen that I've seen before include "Informal information" , "'Information, colloquially (3)'" , "Info" , "Knowledge" , "Information yielded" .)