Stuck on a few I am afraid.
1a er, record-breaking growth [4] ?u??
11a a composer took it easy initially I do not know how many numbers
13d Angry memoir[a tedious section [5]
3d ...a god this heartless is a heavy breather [5]??n?s pants?
15a Daily grind, soldiers hint[2 words] ???r?c?
16a Base still not quite operational [7] ?t station?
18d nymph, say, following Orpheus's lead????d
20d claim regarding beginner breaking fever [5] ??g?e fugue
19a convo;uted text back in italics [7] ???r?c?
22a allude to the Left end the Right
24a Flatter pancake'sfirstto puff up with yeast [6]?r?i??
6d lost database wrongly purged of bad elements [2 words]