Would such sheets seem very heavy on the bed? (6)
I believe the answer is:
cotton
'would such sheets seem' is the definition.
I can't judge whether this defines the answer.
'heavy on the bed?' is the wordplay.
'heavy' becomes 'ton' (I can't justify this - if you can you should give a lot more credence to this answer).
'on' says to put letters next to each other.
'the bed?' becomes 'cot' (cot is a type of bed).
'ton' after 'cot' is 'COTTON'.
'very' is the link.
Can you help me to learn more?
(Other definitions for cotton that I've seen before include "Creamy-white natural fibre" , "Cloth woven from a plant" , "Natural textile fibre" , "Substance like fine wool" , "This wool is a fluffy wadding" .)