Game calling for much more than a stout heart (4)
I believe the answer is:
faro
'game' is the definition.
(faro is a kind of game)
'much more than a stout heart' is the wordplay.
I cannot quite see how this works, but
'much' could be 'far' (I've seen this in other clues) and 'far' is found within the answer.
A single letter 'o' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
'calling for' is the link.
Can you help me to learn more?
(Other definitions for faro that I've seen before include "Atlantic port" , "Gambling game with card dealer and players" , "Portuguese, 22 [RESORT]" , "Algarve seaport" , "Card game - Portuguese resort" .)