LR to answer second clue for food (4)
I believe the answer is:
meal
'food' is the definition.
(meal is a kind of food)
'lr to answer second clue' is the wordplay.
'lr' becomes 'me' (I can't justify this - if you can you should give a lot more credence to this answer).
'to answer' becomes 'a' (abbreviation eg in Q and A).
'second clue' becomes 'l' (end letter of 'clue').
'me'+'a'+'l'='MEAL'
'for' is the link.
Can you help me to learn more?
(Other definitions for meal that I've seen before include "Ground grain or pulses" , "Food ground up" , "Something to eat" , "Eg, lunch" , "Food for male" .)