Palindromic guy (4)
I believe the answer is:
otto
'palindromic guy' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for otto that I've seen before include "fragrance comes from?" , "Palindromic fragrance" , "Something essential" , "Cooker" , "Four-stroke cycle -- palindromic name" .)