Della, unfortunately, may be in the soup! (5)
I believe the answer is:
ladle
'be in the soup' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'della unfortunately' is the wordplay.
'unfortunately' indicates an anagram (a bad or unfortunate spelling).
'della' with letters rearranged gives 'LADLE'.
'may' acts as a link.
Can you help me to learn more?
(Other definitions for ladle that I've seen before include "one in 10 [GRUEL] ?" , "Scoop" , "Large spoon with long handle" , "Deep-bowled spoon" , "Large deep spoon for serving soup" .)