Cancel article entered yearly (6)
I believe the answer is:
annual
'yearly' is the definition.
(synonyms)
'cancel article entered' is the wordplay.
I cannot quite understand how this works, but
'article' could be 'an' (indefinite article) and 'an' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for annual that I've seen before include "Reference book that's published every year" , "Yearly publication" , "Twelve-monthly" , "Hardy it may be" , "Occurring once every year" .)