Travelling near Thailand's capital in clean transport (9)
I believe the answer is:
enrapture
'transport' is the definition.
(I know that transport can be written as enrapture)
'travelling near thailand's capital in clean' is the wordplay.
'travelling' indicates an anagram.
'capital' indicates taking the first letters.
'in' is an insertion indicator.
'clean' becomes 'pure' (similar in meaning).
The initial letter of 'thailand' is 't'.
't' put inside 'pure' is 'pture'.
'near' anagrammed gives 'enra'.
'enra'+'pture'='ENRAPTURE'
(Other definitions for enrapture that I've seen before include "Bewitch" , "Give delight to" , "Ape Turner (anag.)" , "Give intense pleasure to" , "Transport" .)