Tall, slender hound (6)
I believe the answer is:
saluki
'tall slender hound' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for saluki that I've seen before include "Gazelle hound" , "Shown [AT CRUFTS]" , "it's silky and has bark" , "Tall hunting dog (like a greyhound) from Egypt and south-western Asia" , "Gazelle-hound" .)