She maybe had about one pound (5)
I believe the answer is:
hilda
'she' is the definition.
'maybe had about one pound' is the wordplay.
'maybe' is an anagram indicator.
'about' means one lot of letters goes inside another.
'one pound' becomes 'Il'.
'had' anagrammed gives 'hda'.
'hda' going around 'il' is 'HILDA'.
(Other definitions for hilda that I've seen before include "Baroness Thatcher's middle name" , "girl" , "saint" , "Margaret -- Thatcher" , "Woman" .)