Beetle Bailey pooch (4)
I believe the answer is:
otto
'beetle bailey pooch' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for otto that I've seen before include "Palindromic German name like Bismark's" , "Reversible German" , "Italian for eight" , "Cooker" , "perfume ingredient" .)