Wasting every second of slow Friday in European capital (5)
I believe the answer is:
sofia
'european capital' is the definition.
(capital of Bulgaria)
'wasting every second of slow friday' is the wordplay.
I cannot really understand how this works, but
'second' could be 's' (common abbreviation) and 's' is located in the answer.
'of' could be 'o' and 'o' is located in the answer.
'friday' could be 'f' and 'f' is found in the answer.
This explanation may well be incorrect...
'in' acts as a link.
Can you help me to learn more?
(Other definitions for sofia that I've seen before include "capital place" , "European city" , "Bulgarian capital" , "Balkan capital" , "capital city" .)