Roar coming from Irish lake that has taken a second (5)
I believe the answer is:
laugh
'roar' is the definition.
(I know that roar is a more specific form of laugh)
'irish lake that has taken a second' is the wordplay.
I cannot really understand how this works, but
'lake' could be 'l' (geographical abbreviation) and 'l' is found within the answer.
'a' is present in the answer.
The remaining letters 'ugh' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'coming from' is the link.
Can you help me to learn more?
(Other definitions for laugh that I've seen before include "Audible expression of amusement" , "Sound of mirth" , "a ridiculous thing" , "Possible response to joke" , "Cachinnate" .)