Awful name for black-hearted Oriental plant in allotment (3,10)

I believe the answer is:

bad reputation

I'm a little stuck... Click here to teach me more about this clue!

'allotment' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'awful name for black-hearted oriental plant' is the wordplay.
I cannot quite see how this works, but
'awful' could be 'bad' ('bad' can be similar in meaning to 'awful') and 'bad' is found within the answer.
'name' could be 'uta' and 'uta' is located in the answer.
'oriental' could be 'e' and 'e' is present in the answer.
'plant' could be 'ti' (ti is a kind of plant) and 'ti' is present in the answer.
This explanation may well be incorrect...

'in' is the link.

Can you help me to learn more?

I've seen this clue in the Irish Times and the Irish Times (Crosaire).

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