Unusually apt due to being right in fashion (2,2,4)
I believe the answer is:
up to date
'in fashion' is the definition.
(I've seen this before)
'unusually apt due to' is the wordplay.
'unusually' indicates an anagram.
'apt'+'due'+'to'='aptdueto'
'aptdueto' anagrammed gives 'UP-TO-DATE'.
'being right' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for up to date that I've seen before include "in fashion" , "That's for girlfriend to decide" , "Trendy" , "hip" , "Thoroughly modern" .)