I've found some examples where the normal ordering of words is different:

síos suas: up and down
scáth agus solas: light and shade
fuil agus feóil: flesh and blood

Are there any others?

Word and deed - Beart is briathar (At least, I've heard 'beart is briathar' before, although I'm not sure if it's a set phrase.)

Upside down - Bunoscionn (The Irish here is kind of the reverse of the English.)

good examples - i'd never thought of bun-os-cionn in this regard before.

There's also thall agus abhus 'here and there'

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I'm an intermediate speaker of the Corca Dhuibhne dialect of Irish and also have knowledge on the old spelling
Soir gaċ síar, fé ḋeireaḋ thíar

Díol agus ceannach - buying and selling.

croí agus anam: heart & soul
uisce agus tine: water and fire?

In Ua Laoghaire's Bible, the fire and brimstone that rained down on Sodom was "cith ruíbhe agus tine", reversing the words.