Might be in or even out (4)
I believe the answer is:
iron
'even out' is the definition.
The answer and definition can be both to do with contact as well as being verbs in their base form.
Perhaps you can see an association between them that I don't see?
'might be in or' is the wordplay.
'might be' indicates an anagram (I've seen this in other clues).
'in'+'or'='inor'
'inor' anagrammed gives 'IRON'.
Can you help me to learn more?
(Other definitions for iron that I've seen before include "Metallic element, symbol Fe" , "Fe - golf club" , "Hard metal" , "Smooth (clothes)" , "medicinal preparation for the anaemic?" .)