Times keeps nice refurbed offices (8)
I believe the answer is:
agencies
'offices' is the definition.
('agency' can be a synonym of 'office')
'times keeps nice refurbed' is the wordplay.
'times' becomes 'ages' (age is a kind of time).
'keeps' is an insertion indicator.
'refurbed' indicates an anagram (letters must be refurbished or reorganised).
'nice' with letters rearranged gives 'enci'.
'ages' enclosing 'enci' is 'AGENCIES'.
(Other definitions for agencies that I've seen before include "(Travel) offices" , "Firms who transact business for others, perhaps actors" , "Bureaux" , "Businesses that provide services on behalf of others" , "Businesses providing specific services" .)