In the morning, yours truly looked up woman (4)
I believe the answer is:
emma
'woman' is the definition.
'in the morning yours truly looked up' is the wordplay.
'in the morning' becomes 'am' (AM on a clock).
'yours truly' becomes 'me' (the person who set this crossword).
'looked up' is a reversal indicator (I've seen 'looking up' mean this (in a down clue, letters go up)).
'am'+'me'='amme'
'amme' in reverse letter order is 'EMMA'.
(Other definitions for emma that I've seen before include "Jane Austen work - Ms Bunton, former Baby Spice" , "Name of Nelson's Lady Hamilton" , "Title of novel by Jane Austen" , "Best Actress Oscar winner 1992, for 'Howard's End'" , "Austen character" .)