Cheap product that reflects one snug home in river (10)
I believe the answer is:
rhinestone
'cheap product' is the definition.
(imitation diamond)
'reflects one snug home in river' is the wordplay.
'reflects one' becomes 'i' (I can't justify this - if you can you should believe this answer much more).
'snug home' becomes 'nest' (I've seen this in another clue).
'in' indicates putting letters inside.
'river' becomes 'rhone' (Rhone River is an example).
'i'+'nest'='inest'
'inest' put into 'rhone' is 'RHINESTONE'.
'that' is the link.
Can you help me to learn more?
(Other definitions for rhinestone that I've seen before include "cheap jewellery" , "Rock" , "Imitation diamond" , "it's made of paste" , "Fake gem" .)