An allusion to one's character and ability perhaps (9)

I believe the answer is:

reference

I'm a little stuck... Click here to teach me more about this clue!

'an allusion' is the definition.
(I've seen this before)

I don't understand how the remainder of the clue works.

(Other definitions for reference that I've seen before include "Direction to source information" , "Recommendation by a former employer" , "Testimonial - allusion" , "Allusion - character report" , "Recommendation, testimonial" .)

I've seen this clue in The Globe and Mail.

Want a hint initially instead of a full solution? Install my app