Crossword Genius

Perpetually young, without regular income, not with (7)

Ross

I believe the answer is:

ageless

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

'perpetually young' is the definition.
(I've seen this before)

'without regular income not with' is the wordplay.
I cannot really see how this works, but
'without' could be 'less' (I've seen this in another clue) and 'less' is present in the answer.
The remaining letters 'age' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for ageless that I've seen before include "Never growing old" , "Small amphibian" , "Forever young" , "unaffected by time" , "Enduring" .)

I've seen this clue in The Times.
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