First person said to be tiny (3)
I believe the answer is:
wee
'be tiny' is the definition.
(I've seen this in another clue)
'first person said' is the wordplay.
'first person' becomes 'we' (first-person plural pronoun).
'said' indicates a 'sounds like' (homophone) clue.
'we' sounds like 'WEE'.
'to' acts as a link.
(Other definitions for wee that I've seen before include "Mini in Glasgow?" , "squeal" , "Little (Scottish)" , "Small like Willie Winkie" , "Little or tiny in Scotland" .)