Biker and great thinker penning lines and small article (5,5)

'biker' is the definition.
(I have seen 'Aggressive biker' mean 'hells angel' so perhaps 'biker' could also mean 'hells angel')

'great thinker penning lines and small article' is the wordplay.
I cannot really understand how this works, but
'great' could be 'g' (abbreviation in place names) and 'g' is present in the answer.
'lines' could be 'll' (two abbreviations for line) and 'll' is located in the answer.
'small' could be 's' (abbreviation - e.g. clothes size) and 's' is present in the answer.
'article' could be 'an' (indefinite article) and 'an' is present in the answer.
The remaining letters 'heel' is a valid word which might be clued in a way I don't see.
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?