Recognised daughter behind deceptively thin disguise (13)
I believe the answer is:
distinguished
'recognised' is the definition.
('distinguish' can be a synonym of 'recognize')
'daughter behind deceptively thin disguise' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'behind' means one lot of letters go next to another.
'deceptively' is an anagram indicator (I've seen this in other clues).
'thin'+'disguise'='thindisguise'
'thindisguise' is an anagram of 'istinguished'.
'd'+'istinguished'='DISTINGUISHED'
(Other definitions for distinguished that I've seen before include "Acclaimed" , "Made out; illustrious" , "like a VIP" , "saw the difference" , "Uniquely recognised" .)