Old article about motorway woman (5)
I believe the answer is:
naomi
'woman' is the definition.
'old article about motorway' is the wordplay.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'article' becomes 'an' (indefinite article).
'about' says the letters should be written in reverse.
'motorway' becomes 'MI' (resembles M1, English motorway).
'o'+'an'='oan'
'oan' back-to-front is 'nao'.
'nao'+'mi'='NAOMI'
(Other definitions for naomi that I've seen before include "OT female" , "Biblical mother-in-law of Ruth" , "woman in the Bible" , "Mother-in-law of Ruth (Bible)" , "Relative of Ruth" .)