Also said to be more than one (3)
I believe the answer is:
too
'also' is the definition.
(synonyms)
'said to be more than one' is the wordplay.
'said to be' indicates a 'sounds like' (homophone) clue.
'more than one' becomes 'two' (I've seen this in another clue).
'two' is a homophone of 'TOO'.
(Other definitions for too that I've seen before include "Also; overly" , "As well; in addition" , "Excessively" , "Likewise" , "Unduly" .)