What is the best way to divide the land of a new tribe, given a tribal custom that dictates its equal division among the clans, such that females only benefit from this division after the death of the owners?

The questioner did not mention how the tribe acquired the new land. If it was a grant or a gift, then it is to be divided according to the condition of the grantor or the state. If it was acquired through reclamation, then it belongs to whoever reclaimed it. Females must be given a share of the land if their right to it is established, such as through inheritance. The division of the land is left to the owners and what they agree upon.