Small cup offered by girl in sanctimonious family (8)
I believe the answer is:
pannikin
'small cup' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'girl in sanctimonious family' is the wordplay.
'girl' becomes 'ann' (woman's name).
'in' means one lot of letters goes inside another.
'sanctimonious' becomes 'pi'.
'family' becomes 'kin' (synonyms).
'ann' going within 'pi' is 'panni'.
'panni'+'kin'='PANNIKIN'
'offered by' acts as a link.
Can you help me to learn more?
(Other definitions for pannikin that I've seen before include "metal cup" , "small vessel" , "One full of drink maybe" .)