The most common and most likely answer to this crossword clue is the 7 letter word MINERVA
I've seen this crossword clue in The Sunday Telegraph
M
I
N
E
R
V
A
More clues leading to the result MINERVA
- One digging verse by a wise old female
- Goddess and pitman by museum
- Exceptional man I revere, not half, as source of wisdom
- Underground worker needing victory over a wise woman
- Cut crystal, for example, capturing very wise goddess
- Variety of vermin linked to a Roman deity
- Pit worker against a goddess
- Underground worker, a very upset female of great wisdom
- Some examiner valued as a wise female
- Pitman against a Greek Goddess
Buddy explains!

The straight part
We know that "wise goddess" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wise goddess = minerva.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.