Juicer contains cold item (3)
I believe the answer is:
ice
'cold item' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?
'juicer contains' is the wordplay.
'contains' says the answer is hidden in the clue.
'ICE' is hidden within 'juicer'.
Can you help me to learn more?
(Other definitions for ice that I've seen before include "Constituent of 2dn" , "such an age" , "Slippery surface" , "Decorate with frosting" , "Glaciate" .)