Bankrupt trainer finally moving in to enhance his cycling (10)
I believe the answer is:
impoverish
'bankrupt' is the definition.
(thesaurus)
'trainer finally moving in to enhance his cycling' is the wordplay.
I cannot quite see how this works, but
an anagram of 'his' is 'ish' which is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for impoverish that I've seen before include "Spoil the quality of" , "beggar" , "Make poor" .)