The most common and most likely answer to this crossword clue is the 8 letter word FREEZING
I've seen this crossword clue in The Times
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More clues leading to the result FREEZING
- Let vitality go, becoming motionless
- Very cold, having unfastened zip
- No-cost energy when very cold
- Like ice, sparkle on the house?
- Deliver energy suffering from cold
- Very cold energy to give away?
- Bitter and spirit at no cost
- Cold can give you unlimited appetite
- Head of Zoology gets sucked into releasing a number of teeth
Buddy explains!

The straight part
We know that "Very cold" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case very cold = freezing.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does FREEZING mean?
FREEZING verb- Especially of a liquid, to become solid due to low temperature.
- To lower something's temperature to the point that it freezes or becomes hard.
- To drop to a temperature below zero degrees celsius, where water turns to ice.
- To be affected by extreme cold.
- (of machines and software) To come to a sudden halt, stop working (functioning).
- (of people and other animals) To stop (become motionless) or be stopped due to attentiveness, fear, surprise, etc.
- To cause someone to become motionless.
- To lose or cause to lose warmth of feeling; to shut out; to ostracize.
- To cause loss of animation or life in, from lack of heat; to give the sensation of cold to; to chill.
- To prevent the movement or liquidation of a person's financial assets
- Of prices, spending etc., to keep at the same level, without any increase.
- The change in state of a substance from liquid to solid by cooling to a critically low temperature.
- The action of numbing with anesthetics.
- Suffering or causing frost
- (by extension) Very cold