Idea for consideration (7)
I believe the answer is:
thought
This clue is a double definition.
'idea' is the first definition.
('thought' can be a synonym of 'idea')
'consideration' is the second definition.
(thesaurus)
'for' acts as a link.
(Other definitions for thought that I've seen before include "Cogitated" , "Performed brain operations" , "That's an idea" , "Idea, concept" , "Fancy" .)