Phosphorus included by hand on another match (6)
I believe the answer is:
replay
'match' is the definition.
The answer and definition can be both related to natural events as well as being singular nouns.
Maybe there's an association between them I don't understand?
'phosphorus included by hand on another' is the wordplay.
'phosphorus' becomes 'P' (P is the chemical symbol for phosphorus).
'included by' means one lot of letters goes inside another.
'hand' becomes 'lay' (I am not sure about this - if you are sure you should believe this answer much more).
'on' means one lot of letters go next to another.
'another' becomes 're' (I've seen this in other clues).
'lay' after 're' is 'relay'.
'p' inserted into 'relay' is 'REPLAY'.
Can you help me to learn more?
(Other definitions for replay that I've seen before include "Hold match again" , "A cup tie; clip shown over and over" , "Second showing?" , "Repeated match" , "kind of race" .)