Bandleader to be without puzzle making remote marker (5,5)

'remote marker' is the definition.
The definition suggests a singular noun which matches the answer.

'bandleader to be without puzzle' is the wordplay.
I cannot quite see how this works, but
'puzzle' could be 'stump' (I've seen this before) and 'stump' is located in the answer.
'be without' could be 'lack' (I've seen this in another clue) and 'lack' is located in the answer.
A single letter 'b' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

'making' acts as a link.

Can you help me to learn more?