Crossword Genius

Person having to suffer American playwright (1'5)

Ross

I believe the answer is:

o'neill

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

'american playwright' is the definition.
The definition suggests a singular noun which matches the answer. I also know that 'playwright' relates to this answer.

'person having to suffer' is the wordplay.
'person' becomes 'one' (I've seen this in other clues).
'having' is a charade indicator (letters next to each other).
'to suffer' becomes 'ill' (I can't explain this - if you can you should give a lot more credence to this answer).
'one'+'ill'='O'NEILL'

Can you help me to learn more?

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app