Undesirable cryptic clue women (9)
I believe the answer is:
'undesirable' is the definition.
'cryptic clue women' is the wordplay.
'cryptic' indicates an anagram (a cryptic or obscure order of the letters).
'cluewomen' with letters rearranged gives 'UNWELCOME'.
(Other definitions for unwelcome that I've seen before include "Not gladly received" , "Causing displeasure" , "Not wanted" , "Not greeted or received with pleasure, quite the opposite" , "Bad (news); not acceptable" .)