Make for, showing intelligence (4)
I believe the answer is:
head
I believe this is a double definition.
'make for' is the first definition.
(thesaurus)
'intelligence' is the second definition.
(thesaurus)
'showing' is the link.
(Other definitions for head that I've seen before include "Skull" , "Chief; bonce" , "Chief; promontory" , "See 12" , "Cranium" .)