Blue magazine from US for when there’s no work doable (8)
I believe the answer is:
downtime
'us for when there's no work doable' is the definition.
I can't tell whether this defines the answer.
'blue magazine' is the wordplay.
'blue' becomes 'down' (both can mean sad).
'magazine' becomes 'time' (US magazine).
'down'+'time'='DOWNTIME'
'from' is the link.
Can you help me to learn more?
(Other definitions for downtime that I've seen before include "while doing nothing" , "Period when computer is out of action" , "Unproductive hours" .)