Found it was terribly cold out and ate in (7)
I believe the answer is:
located
'found' is the definition.
(locating is a kind of finding)
'terribly cold out and ate in' is the wordplay.
'terribly' indicates anagramming the letters.
'out' means to remove the last letter.
'and' says to put letters next to each other.
'ate in' becomes 'ated' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'cold' with its final letter taken off is 'col'.
'col' is an anagram of 'loc'.
'loc'+'ated'='LOCATED'
'it was' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for located that I've seen before include "Settled -- cold tea (anag)" , "Situated in a particular spot" , "Pin-pointed" , "Found" , "Discovered where something was" .)