Such strife could be a trial for mother (7)
I believe the answer is:
marital
'such strife could be a trial for mother' is the definition.
I can't tell whether this definition defines the answer.
'could be a trial for mother' is the wordplay.
'could be' indicates anagramming the letters.
'for' is a charade indicator (letters next to each other) (I've seen this in other clues).
'mother' becomes 'ma' (ma can mean mother).
'trial' with letters rearranged gives 'rital'.
'rital' put after 'ma' is 'MARITAL'.
Can you help me to learn more?
(Other definitions for marital that I've seen before include "Relating to union of husband and wife" , "Of a wedding" , "related to union" , "to do with couple's relationship" , "Relating to marriage" .)