Rap a poor repair and have difficulties (6,1,3,5)
I believe the answer is:
strike a bad patch
'have difficulties' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'rap a poor repair' is the wordplay.
I cannot quite see how this works, but
'rap' could be 'strike' (synonyms) and 'strike' is located in the answer.
'a' is found in the answer.
'poor' could be 'bad' (similar in meaning) and 'bad' is located in the answer.
'repair' could be 'patch' (patching is a kind of repairing) and 'patch' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'and' acts as a link.
Can you help me to learn more?