Service display in large-scale manufacture (4-10)
I believe the answer is:
mass-production
'large-scale manufacture' is the definition.
(I've seen this before)
'service display' is the wordplay.
I cannot quite see how this works, but
'service' could be 'mass' (church service) and 'mass' is found within the answer.
'display' could be 'production' (production is a kind of display) and 'production' is found within the answer.
No letters remain.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Another definition for mass-production that I've seen is " Manufacturing practice".)