Scaly pet (6)
I believe the answer is:
iguana
'scaly pet' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for iguana that I've seen before include "Tropical spiny lizard" , "The Night of the ---, (T. Williams)" , "Large crested lizard" , "American lizard with a spiny crested back" , "Something like a monitor" .)