Information on American’s heart is not specific (7)
I believe the answer is:
generic
'not specific' is the definition.
(I've seen this before)
'information on american's heart' is the wordplay.
'information' becomes 'gen' (gen is a kind of information).
'on' means one lot of letters go next to another.
'heart' means to look at the middle letters.
The middle letters of 'american' are 'eric'.
'gen'+'eric'='GENERIC'
'is' is the link.
(Other definitions for generic that I've seen before include "Common" , "Applicable to an entire class or group" , "Referring to a whole class or group" , "Collective" , "appropriate for the whole class" .)