Name of some Caledonians (3)
I believe the answer is:
ian
'name' is the definition.
'some caledonians' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'IAN' is hidden within 'caledonians'.
'of' is the link.
(Other definitions for ian that I've seen before include "Albert Beale's first name in EastEnders" , ". . . Botham, . . . Woosnam" , "- - Wallace (baritone)" , "Scottish man's name" , "The familiar Dr Paisley" .)