Vulnerable Part of Infant Skull Aka Fontanelle

This page is the CodyCross answer for the clue below from Time for a check-up, Group 1704, Puzzle 2 (Signs and Symptoms).

Question is: Vulnerable Part of Infant Skull Aka Fontanelle

and the answer is: SOFTSPOT

Word Meaning:

SOFT SPOT — (idiomatic) A sentimental fondness or affection.

Definitions from Wiktionary.