Popular to tuck into tea here? (5)
I believe the answer is:
china
'here?' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'popular to tuck into tea' is the wordplay.
'popular' becomes 'in' ('in' can mean trendy).
'to tuck into' indicates putting letters inside.
'tea' becomes 'cha' (cha is a type of tea).
'in' inserted into 'cha' is 'CHINA'.
(Other definitions for china that I've seen before include "It's fragile, though its economy is not!" , "Country - crockery" , "Country; friend (slang)" , "High quality porcelain" , "pottery" .)