A dictionary of Confusable Phrases: More Than 10,000 Idioms and Collocations

right-hand man • right-handed man
right-hand man —a person’s chief assistant: The relationship
between the coach and his right-hand man, irrespective of his
title, is pivotal.
right-handed man —(also: right-hander) a man who uses his
right hand for writing, etc.: I came to the conclusion that the
blow might have been struck by a right-handed man.
ring a bell • ring the bell
ring a bell —(coll.) sound familiar; remind of smth.: The
name of the company rang a bell. One of my neighbors
worked for them during the war.
ring the bell —(coll.) 
1
. (also: ring bells) be met with approval;
be a complete success: The President’s speeches ring the bell
with certain segments of middle America. 2. supply exactly
what is necessary or desired: A good hot bowl of soup would
ring the bell about now.
Note: 
The expression does not correlate in meaning with the
phrase who will ring the bell— used to ask who will assume the
responsibility in a difficult situation: I agree that allegations
should be investigated. The question is, who will ring the bell?
See also: ring one’s bell / ring someone’s bell.
ring alarm bells • ring bells
ring alarm bells —arouse people to a sense of danger; put
on the alert: The huge vote for fascist candidates should ring
alarm bells across Europe.
ring bells —(also: ring the bell) meet with approval; have a
strong appeal: Macmillan’s speech rang bells around the world
because it signaled the change in Britain’s colonial policy.
ring one’s bell • ring someone’s bell
ring one’s bell —(also: blow one’s own trumpet) announce one’s
own successes; praise oneself: As he won, the winner rang his
bell on and on, till he stopped panting and could laugh and
talk properly.