Wrath when fisherman loses heart (5)
I believe the answer is:
anger
'wrath' is the definition.
(synonyms)
'when fisherman loses heart' is the wordplay.
'when' becomes 'ang' (I am not sure about this - if you are sure you should believe this answer much more).
'fisherman' becomes 'eeler' (I've seen this in another clue).
'loses heart' means to remove the middle letters.
'eeler' with its centre taken out is 'er'.
'ang'+'er'='ANGER'
Can you help me to learn more?
(Other definitions for anger that I've seen before include "Irateness" , "Hack off" , "Rage" , "blaze of this?" , "Nettle" .)