Initially, Huxley should get consideration (7)
I believe the answer is:
thought
'consideration' is the definition.
(I've seen this before)
'initially huxley should' is the wordplay.
'initially huxley' becomes 'th' (biologist TH Huxley).
'should' becomes 'ought' (synonyms).
'th'+'ought'='THOUGHT'
'get' acts as a link.
(Other definitions for thought that I've seen before include "Reflection" , "That's an idea" , "Meditation" , "Considered, believed" , "Cogitation" .)