How a service professional might address crazy mother missing daughter (5)
I believe the answer is:
madam
'how a service professional might address' is the definition.
I can't judge whether this definition defines the answer.
'crazy mother missing daughter' is the wordplay.
'crazy' becomes 'mad' (synonyms).
'mother' becomes 'dam' (female parent of an animal).
'missing' is a deletion indicator.
'daughter' becomes 'd' (genealogical abbreviation).
'dam' with 'd' taken out is 'am'.
'mad'+'am'='MADAM'
Can you help me to learn more?
(Other definitions for madam that I've seen before include "pompous young lady?" , "What you would call a female customer (or a spoiled girl!)" , "Palindrome used in speaking politely to a woman" , "Term of address to a woman" , "Woman running a brothel" .)