Surprise article on Indian corn I ignored (5)
I believe the answer is:
amaze
'surprise' is the definition.
(I've seen this before)
'article on indian corn i ignored' is the wordplay.
'article' becomes 'a' (indefinite article).
'on' says to put letters next to each other.
'indian corn' becomes 'maize' ('maize' can be a synonym of 'indian corn').
'ignored' is a deletion indicator.
'maize' with 'i' taken away is 'maze'.
'a'+'maze'='AMAZE'
(Other definitions for amaze that I've seen before include "Flummox" , "Greatly surprise in a labyrinth" , "Startle" , "Affect with wonder" , "Stun" .)