On half-days, a bad game will do no good! (6)
I believe the answer is:
damage
'do no good' is the definition.
The answer and definition can be both related to natural events as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'on half-days a bad game' is the wordplay.
'on' says to put letters next to each other.
'half' suggests halving the letters.
'a bad' is an anagram indicator.
'days' cut in half is 'da'.
'game' with letters rearranged gives 'mage'.
'da' put next to 'mage' is 'DAMAGE'.
'will' is the link.
Can you help me to learn more?
(Other definitions for damage that I've seen before include "vandalism?" , "Harm, loss" , "Impairment, injury" , "Ravages" , "Detrimental effect" .)