Reflect on one bishop being hugged by a thousand soldiers (6)
I believe the answer is:
mirror
'reflect' is the definition.
(mirroring is a kind of reflecting)
'one bishop being hugged by a thousand soldiers' is the wordplay.
'one' becomes 'i' (Roman numeral).
'bishop' becomes 'rr' (abbreviation for Right Reverend).
'being hugged by' indicates putting letters inside (I've seen this in other clues).
'a thousand' becomes 'm' ('M' can be a synonym of 'thousand').
'soldiers' becomes 'or' (Other Rank).
'i'+'rr'='irr'
'm'+'or'='mor'
'irr' placed inside 'mor' is 'MIRROR'.
'on' is the link.
(Other definitions for mirror that I've seen before include "model" , "Image reflector" , "Something studied constantly by the vain?" , "Depict" , "Common device for reflection" .)