Spend colder months in Krakow in terror (6)
I believe the answer is:
winter
'spend colder months' is the definition.
'winter' can be an answer for 'spend' (wintering is a kind of spending). I'm unsure of the 'colder months' bit.
'in krakow in terror' is the wordplay.
'in' says the answer is hidden in the clue.
'WINTER' can be found hidden inside 'krakow in terror'.
Can you help me to learn more?
(Other definitions for winter that I've seen before include "Time for mittens and scarves?" , "Cold season" , "period of freeze?" , "'If . . . . . . comes, can spring be far behind?'" , "'Now is the . . . . . . of our discontent' (Richard III)" .)