Lines in support of love by female author (1,5)
I believe the answer is:
o henry
'author' is the definition.
'lines in support of love by female' is the wordplay.
'lines' becomes 'ry' (abbreviation for railway).
'in support of' means one lot of letters go next to another (I've seen this in other clues).
'love' becomes 'o' (In tennis, 'love' means 'zero').
'by' says to put letters next to each other.
'female' becomes 'hen' (hen is a kind of female).
'o'+'hen'='ohen'
'ry' after 'ohen' is 'O HENRY'.
(Other definitions for o henry that I've seen before include "Pseudonym of famous American short-story writer, real name William Sydney Porter" , "US short-story writer" , "American humorous writer, d. 1910" , "story-teller" .)