Women have many odd ideas (6)
I believe the answer is:
ladies
'women' is the definition.
(I know this)
'many odd ideas' is the wordplay.
'many' becomes 'l' ().
'odd' indicates an anagram.
'ideas' with letters rearranged gives 'adies'.
'l'+'adies'='LADIES'
'have' acts as a link.
(Other definitions for ladies that I've seen before include "Convenience" , "Lords' wives" , "Wives of knights" , "Women of rank in the British peerage" , "9th" .)