Possible Clues:

• It could be hot!
• Eye sprouter
• Vegetable grown underground
• Ring, getting on, unexpectedly, to Pat Murphy
• Type of salad
• Vegetable volunteers put into cooking vessel along with duck
• To turn in 31 across needs to be dug up
• Product of 72 Down
• Tuber, popular in Ireland
• Spot a tomato hidden in the ground, perhaps