### Clue: An order you'll carry out, if you can! (8)
### Answer: PRESERVE 
 ### Explanation: An order you'll carry out, if you can! (8)
I do not see any specific connection between 'order' and PRESERVE, beyond than that the latter word may be an imperative, so I see this as a weak cryptic definition, depending on the interpretation of 'can' as putting up fruit and vegetables.