Honoured when fish captured (9)
I believe the answer is:
garlanded
'honoured' is the definition.
(I've seen this before)
'fish captured' is the wordplay.
'fish' becomes 'gar' (type of gar).
'captured' becomes 'landed' (I am not sure about this - if you are sure you should believe this answer much more).
'gar'+'landed'='GARLANDED'
'when' is the link.
Can you help me to learn more?
(Other definitions for garlanded that I've seen before include "adorned with flowers" , "Honoured" , "with distinction" , "swathed in leaves" , "Wreathed in flowers" .)