Crossword Genius

Such a frost means the house needs a bit of warmth (4)

Ross

I believe the answer is:

hoar

I'm a little stuck... Click here to teach me more about this clue!

'such a frost' is the definition.
(synonyms)

'the house needs a bit of warmth' is the wordplay.
'the house' becomes 'h'.
'needs' means one lot of letters go next to another.
'a bit of warmth' becomes 'oar' (I can't explain this - if you can you should believe this answer much more).
'h'+'oar'='HOAR'

'means' acts as a link.

Can you help me to learn more?

(Other definitions for hoar that I've seen before include "Here are ice crystals" , "Grey with age; frost" , "Type of frost" , "A kind of white frost" , "Greyish-white with age or frost" .)

I've seen this clue in the Evening Standard.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.