Extremely overweight, spending time on this? (4)
I believe the answer is:
sofa
'this?' is the definition.
The definition suggests a singular noun which matches the answer.
'extremely overweight spending time' is the wordplay.
'extremely' becomes 'so' ('so' can mean 'extremely' or 'very').
'overweight' becomes 'fat' (similar in meaning).
'spending' indicates named letters should be taken away (to spend can mean to give out or give away).
'time' becomes 't' (abbreviation).
'fat' with 't' removed is 'fa'.
'so'+'fa'='SOFA'
'on' acts as a link.
Can you help me to learn more?
(Other definitions for sofa that I've seen before include "Couch" , "Divan" , "Upholstered seat for two or more" , "Settee" , "Living room seat" .)