I guess it depends on what you mean by a 'Spring clean out'. Many people drain the pond fully, scrub everything to a state of brand-new clean & then refill with new water. This is what NOT to do! You don't want to remove all the beneficial bacteria & micro-organisms that cling to all the surfaces & exist in the fully cycled water, or you run the risk of developing 'new pond syndrome' again each time.
Now, if you mean just draining (but saving!) the old water, removing any piles of leaves/debris that might have accumulated on the bottom, dividing plants, tidying up gravel or rocks that might have moved or shifted, then refilling with the old, saved water - that's OK to do. If there really isn't a ton of accumulated 'stuff' in the bottom, it can also be accomplished without the draining - just use a fine net & scoop, scoop, scoop.
If you've turned off your pump/filter over the winter, once it's fired up again & things start to circulate, that really helps a lot.