Guide has a quick look for galena (4,6)

I believe the answer is:

lead glance

I'm a little stuck... Click here to teach me more about this clue!

'galena' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'guide has a quick look' is the wordplay.
'guide' becomes 'lead' (lead can mean to usher or guide).
'has' means one lot of letters go next to another.
'a quick look' becomes 'glance' (I've seen this before).
'lead'+'glance'='LEAD GLANCE'

'for' is the link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.