Sheep gets in more trouble (6)
I believe the answer is:
merino
'sheep' is the definition.
(I know that Merino is a type of sheep)
'in more trouble' is the wordplay.
'trouble' indicates anagramming the letters.
'in'+'more'='inmore'
'inmore' is an anagram of 'MERINO'.
'gets' is the link.
(Other definitions for merino that I've seen before include "Breed of sheep with fine wool" , "Type of sheep" , "Sheep from Spain with a heavy quality fleece" , "Sheep bred for its long, fine wool" , "Fine-woolled sheep" .)