Possible Clues:

• Select church circles over Home Counties
• Sounds one may be selective with one's gum
• Stop straddling
• Select or opt
• Pick some sweets? I'll say!
• For choice one gets one's teeth into this, by the sound of it
• Pick a card, any card, say
• Might S. elect what he gets his teeth into, by the sound of it (6)
• Might S elect to get its teeth into this, by the sound of it?
• Vote for Conservative line containing nothing