Evergreen shrub for girl (7)
I believe the answer is:
heather
I believe this clue is a double definition.
'evergreen shrub' is the first definition.
(I've seen this before)
'girl' is the second definition.
'for' is the link.
(Other definitions for heather that I've seen before include "Moorland shrub" , "Small purple evergreen plant growing on hills" , "Lassie" , "grows wild" , "Moorland flora" .)