Bounty loser can genuinely start cursing (9)

I believe the answer is:

blighting

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'cursing' is the definition.
Although both the answer and definition are present participle verbs, I can't understand how they can define each other.

'bounty loser can genuinely start' is the wordplay.
'bounty loser' becomes 'bligh' (I can't explain this - if you can you should give a lot more credence to this answer).
'can' becomes 'tin' (both are metal containers).
'start' indicates taking the first letters.
The first letter of 'genuinely' is 'g'.
'bligh'+'tin'+'g'='BLIGHTING'

Can you help me to learn more?

I've seen this clue in The Daily Express.

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