Superficial fans lionised one man (3-11)
I believe the answer is:
one-dimensional
'superficial' is the definition.
(I've seen this before)
'fans lionised one man' is the wordplay.
'fans' indicates an anagram (I've seen 'fan' mean this (letters must be fanned around)).
'lionised'+'one'+'man'='lionisedoneman'
'lionisedoneman' with letters rearranged gives 'ONE-DIMENSIONAL'.
(Other definitions for one-dimensional that I've seen before include "Unsophisticated" , "Lacking in depth" , "Superficial" .)