Clue: Sausage such as Scots favour flipped and put on a roll (5)
Answer: ENROL
Explanation: Sausage such as Scots favour flipped and put on a roll (5)
**<=LORNE** ("sausage such as Scots prefer", *flipped*) 
Lorne sausage is another name for square sausage, a Scots breakfast item very often served on a roll