Ah....so its just DDL you are after.
So options are:
DEPARTITION (see Paul's comment) combined with METADATA_ONLY in DataPump.
You can also use DBMS_METADATA.GET_DDL (search this site for plenty of examples) and add in a transformation
begin
dbms_metadata.set_transform_param(dbms_metadata.session_transform,'PARTITIONING',false);
end;
/