Freezing in panic in Guildford (5)
I believe the answer is:
icing
'freezing' is the definition.
(I know that icing is a type of freezing)
'in panic in guildford' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ICING' is hidden in the letters of 'panic in guildford'.
(Other definitions for icing that I've seen before include "causes trouble at airports?" , "Sugar coating - a danger to aircraft, on roads etc" , "effect of cold weather" , "piece of cake?" , "You could see this on a cake" .)