Related Clues:

• Where I might put butter, having great success
• Enjoying a series of successes
• Having a run of good fortune
• In a purple patch
• Doing well identifying location of sandwich filling?
• Having continued success performing a part on the radio
• Where one may use spread betting consistently well?
• Where poppy seeds might be having a run of success
• ... where cheese may be cooking
• Where we may see seeds winning
• Enjoying continuing success playing a character on the radio