Crossword Genius

Primate gets kiss at the top (4)

Ross

I believe the answer is:

apex

'the top' is the definition.
(apex is a top or peak)

'primate gets kiss' is the wordplay.
'primate' becomes 'ape' (large primate).
'gets' means one lot of letters go next to another.
'kiss' becomes 'x' (X can represent a kiss).
'ape'+'x'='APEX'

'at' is the link.

(Other definitions for apex that I've seen before include "Point or summit" , "Tip -- top" , "Absolute peak" , "The highest point or pointed end" , "crown" .)

I've seen this clue in The Mirror.
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