Former US President - R Reagan - mistakenly ignoring a backwoodsman (10)
I believe the answer is:
bushranger
'backwoodsman' is the definition.
(I've seen this before)
'former us president r reagan mistakenly ignoring a' is the wordplay.
I cannot really understand how this works, but
'us' is found in the answer.
'r' is within the answer.
'a' could be 'an' and 'an' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Another definition for bushranger that I've seen is " backwoodsman".)