Ladies going nuts, perhaps, on April 1st (5)
I believe the answer is:
aunts
'ladies going nuts perhaps on april 1st' is the definition.
I can't tell whether this definition defines the answer.
'nuts perhaps on april 1st' is the wordplay.
'perhaps' is an anagram indicator.
'on' is an insertion indicator (as in clothing 'on' a person).
'april ast' becomes 'a' (1st letter of 'april').
'nuts' is an anagram of 'unts'.
'unts' placed around 'a' is 'AUNTS'.
Can you help me to learn more?
(Other definitions for aunts that I've seen before include "Relatives get bad US tan" , "Female relatives, usually older" , "relatively speaking" , "Sally and others" , "Parents' sisters" .)