Interrupting war for a weekend in love, is a simple matter (8)
I believe the answer is:
walkover
'a simple matter' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'interrupting war for a weekend in love' is the wordplay.
'interrupting' indicates putting letters inside.
'war for' becomes 'wr' (I can't explain this - if you can you should believe this answer much more).
'weekend' becomes 'k' (I've seen this in other clues).
'in' means one lot of letters goes inside another.
'k' going inside 'love' is 'lkove'.
'a'+'lkove'='alkove'
'wr' enclosing 'alkove' is 'WALKOVER'.
'is' is the link.
Can you help me to learn more?
(Other definitions for walkover that I've seen before include "Unopposed victory" , "Easy victory of ambulant sort?" , "An easy victory - opponent dropped out" , "Uncontested race" , "An easy victory - stroll across" .)