Weight on one's conscience? (7)
I believe the answer is:
scruple
This could be a double definition.
'weight' is the first definition.
(I know that scruple is a type of apothecaries\\u0027 unit)
'one's conscience?' is the second definition.
'scruple' can be an answer for 'conscience?' (thesaurus). I'm unsure of the 'one's' bit.
'on' acts as a link.
Can you help me to learn more?
(Other definitions for scruple that I've seen before include "Moral hesitation, small weight" , "carrying little weight" , "Doubt - small weight" , "Moral qualm" , "Feeling of moral doubt" .)