Information collected by a heartless county organisation (6)
I believe the answer is:
agency
'organisation' is the definition.
(agency is a kind of organization)
'information collected by a heartless county' is the wordplay.
'information' becomes 'gen' (gen is a kind of information).
'collected by' says to put letters next to each other (I've seen this in other clues).
'heartless' means to remove the middle letters.
'county' with its centre removed is 'cy'.
'gen' put after 'a' is 'agen'.
'agen'+'cy'='AGENCY'
(Other definitions for agency that I've seen before include "Business providing specific service" , "Organisation providing a particular service" , "See 24 Across" , "Means - business" , "Business that acts for other businesses" .)