Crossword Genius

Warm through hearts and dine (4)

Ross

I believe the answer is:

heat

'warm' is the definition.
(thesaurus)

'hearts and dine' is the wordplay.
'hearts' becomes 'h' (abbreviation used in card games e.g. bridge).
'and' is a charade indicator (letters next to each other).
'dine' becomes 'eat' (eat a meal).
'h'+'eat'='HEAT'

'through' is the link.

(Other definitions for heat that I've seen before include "It's measured in therms" , "Warm up" , "Hotness" , "Toast" , "eliminating round" .)

I've seen this clue in The Sun.
Want a hint initially instead of a full solution? Install my app