Wordplay devices

&Lit’s

In the deftly serendipitous &lit (“and literally so”), the entire clue serves as both the straight definition and the wordplay:

What melts! (4)
Micromanager to some extent! (3)

The answers are THAW (an anagram of WHAT, and something that melts) and NAG (hidden in micromaNAGer, and someone who could be described as a micromanager).

In North America, it’s customary to mark an &lit with an exclamation mark.