Divine females are entering new conveniences (6)
I believe the answer is:
naiads
'divine females' is the definition.
The answer and definition can be both people as well as being plural nouns.
I also know that 'females' relates to this answer.
'are entering new conveniences' is the wordplay.
'are' becomes 'a' (short for 'are', historical unit of measurement).
'entering' indicates putting letters inside.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'conveniences' becomes 'aids' (I can't justify this - if you can you should believe this answer much more).
'n'+'aids'='naids'
'a' inserted into 'naids' is 'NAIADS'.
Can you help me to learn more?
(Other definitions for naiads that I've seen before include "Classical water nymphs" , "Water-nymphs" , "Sprites" , "Water nymphs - sad Ian (anag)" , "Female swimmers" .)