Able to eat trout regularly with food (5)
I believe the answer is:
fruit
'food' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'able to eat trout regularly' is the wordplay.
'able' becomes 'fit' (similar in meaning).
'to eat' means one lot of letters goes inside another.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
The alternate letters of 'trout' are 'ru'.
'fit' going around 'ru' is 'FRUIT'.
'with' is the link.
Can you help me to learn more?
(Other definitions for fruit that I've seen before include "Eg, bananas" , "See 9" , "Reward of activity" , "Kiwi, mandarin etc" , "Orange, lemon" .)