Make like tip on corn (6)
I believe the answer is:
endear
'make like' is the definition.
(I've seen this in another clue)
'tip on corn' is the wordplay.
'tip' becomes 'end' (tip can mean the end of something).
'on' is a charade indicator (letters next to each other) (in a down clue, letters appear on others).
'corn' becomes 'ear' (an ear is a piece of corn).
'end'+'ear'='ENDEAR'
(Other definitions for endear that I've seen before include "Cause to like" , "Make beloved" , "Neared so as to make loved" , "Give popularity to" , "make sweet" .)