How an archaeologist with impractical footwear might show stubbornness? (3,2,4,5)
I believe the answer is:
dig in ones heels
'archaeologist with impractical footwear might show stubbornness?' is the definition.
I can't judge whether this defines the answer.
'how an' is the wordplay.
I cannot quite see how this works, but
'an' could be 'one' and 'one' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for dig in ones heels that I've seen before include "make an impression at grass-roots level?" , "Be very stubborn" .)