Right above dog (5)
I believe the answer is:
rover
'dog' is the definition.
(I've seen this before)
'right above' is the wordplay.
'right' becomes 'r' (common abbreviation).
'above' becomes 'over' (I've seen this before).
'r'+'over'='ROVER'
(Other definitions for rover that I've seen before include "Wanderer, rolling stone" , "one in Bristol, one in Doncaster, perhaps" , "Nomad" , "Wanderer, traveller" , "One who wanders about" .)