Wheat spikes (4)
I believe the answer is:
ears
'wheat spikes' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ears that I've seen before include "Shakespeare 'Friends, Romans, countrymen, lend me your . . . .'" , "Organs for 7 down" , "Auditors" , "Corn; organs" , "Spikes (of cereals)" .)