Possible Clues:

• It takes up space in many fruit salads
• Hami or honeydew
• Edible Arrangements bit
• Fruit salad ingredient, usually
• Galia, for one
• First of all merchants exchange limes or nectarines for other fruit
• Crenshaw or honeydew
• Fruit consumed by some Londoners
• Fruit of gourd family
• Galia fruit?