Practices found in a more industrious age, seemingly (6)
I believe the answer is:
usages
'practices' is the definition.
(usage is a kind of practice)
'in a more industrious age seemingly' is the wordplay.
'in' indicates a hidden word.
'USAGES' can be found hidden inside 'more industrious age seemingly'.
'found' acts as a link.
(Other definitions for usages that I've seen before include "Customary treatments, practices" , "Habitual practices with words" , "speech patterns" , "Linguistic norms" , "Customs." .)