List of substitution and movement indicators

This is a list of substitution indicators, covering anything which suggests swapping or movement of letters in a word. Indicators which are suggestive of upwards motion are valid only in down clues. = Substitution and switching of letters =

Changing the middle one or two letters

 * having a change of heart

Swapping the middle two letters

 * having a heart transplant

Swapping the first and last letters
= Movement of letters = = Spoonerization = = Swapping specific letters =
 * changing sides
 * bubbling up
 * coming up
 * most prominently
 * rising
 * to the bottom
 * to the top
 * Spooner's
 * swapping tops
 * starts to change
 * X becoming Y
 * X for Y
 * X in place of Y
 * X to Y