| IMMERSIONHEATER | Jumbled memories in heart a source of warmth (9,6) |
| CHRISTMASSPIRIT | Source of warmth in the winter, perhaps |
| STROKE | A beat of a heart; a hit of a ball in golf or tennis; a solidus or virgule; a pull of an oar; a sound of a clock's chime; or, a sudden sweep of genius or luck (6) |
| ELECTRICBLANKET | Netball, cricket, etc. ? primarily sports providing source of warmth (8,7) |
| CORNEA | Name inscribed in heart -- a bit of a looker (6) |
| HEATINGELEMENT | Husband taking in oxygen, say, as a source of warmth (7,7) |
| CENTRALHEATING | Principal hospital dining is a source of warmth (7,7) |
| EARTHSHATTERING | What might give heart a big shock? (5-10) |
| CREVICE | Split with no love in heart, a character flaw (7) |
| INTEGER | Number, say, in cold period missing source of warmth |
| FIREPLACE | Get rid of plant's source of warmth? (9) |
| EATER | In East London, source of warmth yielding apple? |
| EVOKE | Awaken memories in the mind (5) |
| PENSIEVE | Magical basin used to view one's memories in the Harry Potter books |
| PANT | Word for a gasp, huff or puff ; a throb of the heart; a heave of the chest; or, a Scottish public drinking fountain (4) |
| FRIENDLYFIRE | Amicable source of warmth that can be lethal (8,4) |
| MOLESKIN | Spies those closest as source of warmth |
| STORAGEHEATER | Efficient domestic source of warmth |
| OPENFIRE | Let fly to source of warmth (4,4) |
| STEAMHEAT | Source of warmth on some trains and ships |
