Spoiled girl embracing grand feature of church (7,5)
I believe the answer is:
stained glass
'feature of church' is the definition.
'stained glass' can be an answer for 'feature' (I have seen 'decorative feature' mean 'stained glass' so perhaps 'feature' could also mean 'stained glass'). I am not sure about the 'of church' bit.
'spoiled girl embracing grand' is the wordplay.
I cannot quite see how this works, but
'girl' could be 'lass' (lass can informally mean a girl) and 'lass' is located in the answer.
'grand' could be 'g' (G is short for grand as in a thousand) and 'g' is present in the answer.
The remaining letters 'stained' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for stained glass that I've seen before include "Feature of many churches" , "Feature in decorative windows" , "Decoration in church window" , "Feature of church windows" , "Church window filler" .)