Bottom of grand robe ruined by male dog (8)
I believe the answer is:
Here is my best explanation:
'dog' is the definition.
(Doberman is an example)
'bottom of grand robe ruined by male' is the wordplay.
'bottom of' indicates one should take the final letters.
'ruined' is an anagram indicator.
'by' means one lot of letters go next to another.
'male' becomes 'man' (man is a kind of male**).
The last letter of 'grand' is 'd'.
'robe' with letters rearranged gives 'ober'.
(Other definitions for doberman that I've seen before include "Barker", "Long-legged terrier", "...pinscher, large dog", "Thematic type [DOG]", "Originally German breed of watchdog", "Big dog" and "Dog used as guard - bond mare (anag)".)