King and that woman getting married? Language! (5)
I believe the answer is:
khmer
'language' is the definition.
(Khmer is an example)
'king and that woman getting married?' is the wordplay.
'king' becomes 'K' (abbreviation for king in chess).
'and' means one lot of letters go next to another.
'that woman' becomes 'her' (her refers to a woman).
'getting' means one lot of letters goes inside another.
'married?' becomes 'm'.
'her' enclosing 'm' is 'hmer'.
'k'+'hmer'='KHMER'
(Other definitions for khmer that I've seen before include "Cambodian language" , "Asian" , "'... Rouge, led by Pol Pot in Cambodia (5)'" , "Native Cambodian" , "Language of Cambodia" .)