Change oars for mooring places (10)

I believe the answer is:

anchorages

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

'mooring places' is the definition.
The answer and definition can be both locations as well as being plural nouns.
Perhaps they are linked in a way I don't understand?

'change oars' is the wordplay.
'change oars' anagrams to 'ANCHORAGES'.
However, I am unsure how this is indicated.

'for' is the link.

Can you help me to learn more?

I've seen this clue in The Irish Independent.

Want a hint initially instead of a full solution? Install my app