Loyalty shown by chap caught in hold (10)
I believe the answer is:
allegiance
'loyalty' is the definition.
(allegiance is a kind of loyalty)
'by chap caught in hold' is the wordplay.
'by chap' becomes 'ian' (man's name. I am not sure about the 'by' bit.).
'caught' becomes 'c' (cricket abbreviation).
'in' indicates putting letters inside.
'hold' becomes 'allege' (both can mean to claim or maintain).
'ian'+'c'='ianc'
'ianc' inserted within 'allege' is 'ALLEGIANCE'.
'shown' is the link.
Can you help me to learn more?
(Other definitions for allegiance that I've seen before include "Loyalty (to a superior)" , "commitment to a cause" , "Fidelity" , "duty" , "Loyalty to a group or cause" .)