Sort of informal relations joined by a daughter turning up (5)
I believe the answer is:
kinda
'sort of' is the definition.
(informal way of saying 'kind of')
'informal relations joined by a daughter turning up' is the wordplay.
'informal relations' becomes 'kin' (I've seen this before. I am not sure about the 'informal' bit.).
'joined' is a charade indicator (letters next to each other).
'by' says to put letters next to each other.
'daughter' becomes 'd'.
'turning up' says the letters should be written in reverse.
'a' put next to 'd' is 'ad'.
'ad' reversed gives 'da'.
'kin'+'da'='KINDA'
Can you help me to learn more?
(Other definitions for kinda that I've seen before include "Courageous" , "Informal sort of" , "somewhat informal" , "Rather casual" , "in a way" .)