Crossword Genius

Yearns to match the size (5)

Ross

I believe the answer is:

sighs

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

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

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for sighs that I've seen before include "Exhales audibly" , "Bridge of - - (Venice)" , "Moans" , "Lamentations" , "Yearns" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app