Take the first left turn at the zoo (4)
I believe the answer is:
lion
'take' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'first left turn at the zoo' is the wordplay.
I cannot really understand how this works, but
'first' could be 'i' (I in Roman numerals eg Elizabeth I) and 'i' is found in the answer.
'left' could be 'l' (common abbreviation) and 'l' is found in the answer.
'at' could be 'on' (location) and 'on' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
'the' acts as a link.
Can you help me to learn more?
(Other definitions for lion that I've seen before include "King of the forest" , "Buddhist scripture; Sanskrit rule" , "Important figure" , "Cowardly visitor in Oz" , "Simba, for example" .)