Miner has no right to dog (6)
I believe the answer is:
Here is my best explanation:
'dog' is the definition.
(collie is a kind of dog)
'miner has no right' is the subsidiary indication.
'miner' becomes 'collier' (collier is a kind of miner).
'has no' suggests deleting specific letters.
'right' becomes 'r' (common abbreviation).
'collier' with 'r' taken away is 'collie'.
'to' is the link.
(Other definitions for collie that I've seen before include "Scottish sheep dog", "Scottish sheepdog", "Sheepdog breed", "shepherd's gofer", "Long-haired intelligent dog", "Breed of sheepdog", "Border dog", "Sheepdog wth ling nose and shaggy hair", "Farm dog" and "Popular kind of sheepdog".)