Healthy ladies endlessly concealing flaws (9)
I believe the answer is:
wholesome
'healthy' is the definition.
(similar in meaning)
'endlessly concealing flaws' is the wordplay.
'endlessly' becomes 'wome' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'concealing' means one lot of letters goes inside another.
'flaws' becomes 'holes' (I've seen this in another clue).
'wome' placed around 'holes' is 'WHOLESOME'.
'ladies' acts as a link.
Can you help me to learn more?
(Other definitions for wholesome that I've seen before include "Healthy in body, taste or morals" , "Previously propitious" , "Moral" , "Good for you!" , "Respectable" .)