Late veg? Of course you can clone it.
I suspect you mean later flower, that being you can try taking cuts I've taken them as late as week 6.
I've never tried this but its doable, flower the plant of but leave some vegitation on it then put it under 18/24hr light and it will grow again but takes time, for 4/6 weeks you'll odd growth then it'll revert back to vegitive growth.
Best of luck!