understanding clustering_factor and leaf_blocks

hello gurus,

    I try to understand if my tablespaces are not very good organized.

i executed a query to retrieve all my indexes the number of CLUSTERING_FACTOR and of  LEAF_BLOCKS.

if i understand a little that is meaning that for retrieve information of my table by the indexes, i have to access a high number time access disk therefor i have to reorganize my table and my indexe, by exemple below :

the table name is PA_IND_COMPILED_SETS   this indexe is PA_IND_COMPILED_SETS_N1       the clustering factor is : 1,077,550                and LEAF_BLOCKS 43,317.

therefore i have to export and import this table and index !!!!