Question: [Spectral Hand](https://2e.aonprd.com/Spells.aspx?ID=295):

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> You create a *semicorporeal* hand out of your essence that delivers touch spells for you. Whenever you Cast a Spell with a range of touch, you can have the hand crawl to a target within range along the ground, touch it, and then *crawl back to you*. [...] The hand has your AC and saves, but any damage to the hand destroys it and causes you to take 1d6 damage.
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The hand is only semicorporeal, but can be damaged. Its movement pattern would provoke.  

Is it *creature enough*?

Answer: 
It doesn't provoke Attack of Opportunity
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[Attack of opportunity](https://2e.aonprd.com/Feats.aspx?ID=145) has very clear guidelines for when it triggers:

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> **Trigger**: A creature within your reach uses a manipulate action or a move action, makes a ranged attack, or leaves a square during a move action it’s using.
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Whilst the hand *is* moving, it is not using a "Move action". Ergo, it does not trigger it.
Tentatively... no?
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I don't have strong grounds for this, but here's my reasoning. *Spectral hand* is a Necromancy spell. Nowhere in it's text does it refer to the hand as a creature, or even being creature-like (as opposed to Illusions like *illusory creature*, which are presumed to be mistaken for a Creature until disbelieved and follow similar-ish rules, or actual Creatures like Crawling Hands). Even the text about it's movement, crawling, doesn't follow standard [Crawl](https://2e.aonprd.com/Actions.aspx?ID=76) rules nor does it use the capitalized Move like the trait.

Furthermore, this is not a very good 2nd level spell if that's true. Granted, far fewer creatures have Reactions to Movement now, but even with that holding true, those times (very likely) shortening the duration from *at most* one combat (one minute) to one or two rounds is a pretty significant flaw.

Ultimately, I don't think it's clear to say definitively. But because of my first points, and supported by the following ones, I would personally rule that it's not "creature enough" to React to its movement\*.

\*I would still consider it the source of damage for Champion Reactions, but that's partially because it's more likely the party is using that than NPC's and I don't want to take shine away from them.