Recently, there's been an awful lot of Riley riddles across PSE. Why are they so prolific? I think there's three main reasons: they're quick to write, quick to solve, and apart from its minor gimmick they're very accessible. This crossword's also like a Riley riddle!
Firstly, one-third of the clues are quick to write: turns out writing clues is quicker when you leave out one letter from each of them. The dropped letters will spell out my thoughts on some of the Riley riddles in PSE.
Another one-third of the clues give answers that are quick to solve: when entering them into the grid, you can skip writing one entire section of them! In the spirit of Riley riddles, each of these entries is missing either its prefix, its suffix, or its infix, leaving behind a word (of varying degress of commonness). Looking at the missing parts should give you an idea of my attitude towards Riley riddles.
Apart from the minor gimmicks, the last one-third of the clues are more accessible: they're read and entered as directed.
1 Returning partial cred is no certification? Think again! (7)
5 Period I must perhaps be stretched across the rack (7)
9 Girl's part of "I'm A Believer" (5)
10 Puppet beheaded with stiff bristle (3)
11 Sort repeated phrases by condition in empty rooms (5)
12 Waiting year to enter drug circle (8)
13 Chance of company backing dog (5)
15 Did carer really entrance master elder's heart? (5)
16 Satellite laboratory in terrible redundancy (6)
17 Clear head with books (2)
19, 20 Ling in a line dance or in lace? (8)
20 See 19
22 Home projects about mountains put back into shows (5)
24 Fits gun, almost, into Eve's caress (5)
25 Patchy plant glove with first sign of tearing (8)
28 Perhaps newspaper journalist in untraceable state (5)
29 Part of a yucky fish (3)
30 Bad design of headless little man nonetheless initially produced (5)
31 Sever head of donkey to freak out racist (7)
32 Pleas of female model left in state (7)
1 Turn back time with Shelter to follow heart of Perry's Hot N Cold, perhaps? (5)
2 Farm out of corn, but acts bustling? (8)
3 Deploy, indeed allied (7)
4 Break barmen's rules without end—it's not complex (4, 6)
5 Argue Mark's clothing is sloppy in front (4)
6 Halo effect of light first seen in air (7)
7 Clean record encompassing fine play by Tottenham forward (6)
8 Incorrectly medicates, perhaps, mange acquired by female (9)
14 Perhaps some making light of faulty status a gate returned into? (10)
15 Took back out miracle talking animal, perhaps? (9)
18 Noticed crowds of those that make planks? (8)
21 Fickle worker following idol holding new way (7)
22 Anticipate rep messed with van briefly (3-4)
23 Durant flees to wasteland (6)
26 Sour and angsty, stupidly missing point (5)
27 The French ellipse, for one, is elliptical (4)
This is my first big variety cryptic! Let me know how I did!