Think about a heavenly female (4)
I believe the answer is:
muse
'think about' is the definition.
(thesaurus)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for muse that I've seen before include "Source of inspiration; rock group" , "Inspiring goddess" , "Goddess; rock group" , "Contemplate -- a goddess of the liberal arts" , "Think - goddess of the liberal arts" .)